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Viperdak6
Dodge Dakota
JOIN HERE
4/15/2002
12:33:09
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 Subject: Check Engine Light
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Message:
I installed my V-8 throttle body on Saturday, and since then my check engine light has come on 3 times, once on sunday, and twice today!!! Is this a problem, or should i just keep resetting this in hopes that it'll just go away after a while? I've put about 200 miles on since i've installed it, today it came on so i reset it, and 3 miles down the road it came on again. i've never had any troubles out of my dak that's why i'm curious. any and all help is much appreciated.
thanks,
brian
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FIJIGabe
Dodge Dakota
JOIN HERE
4/15/2002
12:52:49
|  RE: Check Engine Light
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Message:
now, i haven't made the modification myself, but it appears that your problems are coming from a faulty or improperly installed sensor. you may be getting too much wattage from the TPS sensor or something else. i would check over all the devices that connect to the TB before you go out and pull the TB from the truck. oh, btw, how is it running? have u lost any bottom end power? and what rear-end do u have on it?
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Viperdak6
Dodge Dakota
JOIN HERE
4/15/2002
12:57:09
| RE: Check Engine Light
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Message:
right now i'm idling around 1000 rpms but the low has shown a rediculous gain from before the mod install. the higher rpms are so sensitive to the mod as well. i've still got the stock rear end, not exactly sure what it is (3.55 i'm guessing, but i really have little clue, i'll check it out)
i'll check everything that i can, but i know little bout checking the wattage to the sensors, if you can tell me how, i'd really appreciate it.
thanks,
brian
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bernd
*GenIII*
4/15/2002
12:59:19
| RE: Check Engine Light
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Message:
Brian: What year is your truck and what year is the TB?
1997 Dodge Dakota SLT - V6
Supercharged/Intercooled @ 10# w/Nitrous
14.55 @ 96.01mph
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Viperdak6
Dodge Dakota
JOIN HERE
4/15/2002
13:04:08
| RE: Check Engine Light
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Message:
my truck is a '98 3.9, and all that i know bout the TB is the part number, it's a Holley 12R-10896B but that's all that i know, thanks for looking into it Bernd!!!
thanks again,
brian
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T Eskridge
Dodge Dakota
JOIN HERE
10/28/2002
06:21:57
| RE: Check Engine Light
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Message:
I have a '98 Dakota 3.9 V6. The check engine light is on, but the truck is running fine. Hooked it up to a computer and was told everything was fine. HOW DO I RESET THE LIGHT?
Help!
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Texas97
*GenIII*
10/29/2002
01:53:16
| RE: Check Engine Light
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Message:
I have the check engine light too... been coming on ever since the TB mod. I put in a TB off of a '99 Ram 360.I have reset the comp many times. I used the TPS sensor that came with the TB, b/c i broke my one for the V6 TB on accicdent. I checked the wattage and it is at .76. I have been going crazy trying to find out what that light could be... it runs ok otherwise, but it ran better with the V6 TPS. I might try to get a new sensor sometime soon. Im gonna try and reseat my injectors that I installed, with new o-rings, so i can be sure it is not those things.
I dont know what else to do about it.... Bernd... please help, man!!
Gig 'em Ags!
Kick the tires and light the fires!
97 Dakota CC 3.9L 5 speed
Mods: A lot of fun stuff
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Texas97
*GenIII*
10/30/2002
00:46:05
| RE: Check Engine Light
IP: Logged
Message:
back to the top
Gig 'em Ags!
Kick the tires and light the fires!
97 Dakota CC 3.9L 5 speed
Mods: A lot of fun stuff
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DakotaDan
*GenIII*
10/30/2002
07:08:59
|  RE: Check Engine Light
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Message:
Why don't you take it to AutoZone and let them scan it for codes, it's free
Dan
"Can You Hear Me Now"........................................GOOD !!!!!!!!!!!!!!!!!!!!!!!!!
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Texas97
*GenIII*
10/30/2002
11:22:26
| RE: Check Engine Light
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Message:
They dont know what that code means... something about a leak in a air pressure in the fuel system. At first they thought the gas cap was not holding in the pressure, but that didnt fix it... so it must be a air leak at the injectors.
Gig 'em Ags!
Kick the tires and light the fires!
97 Dakota CC 3.9L 5 speed
Mods: A lot of fun stuff
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DakotaDan
*GenIII*
10/30/2002
12:43:21
| RE: Check Engine Light
IP: Logged
Message:
Sounds like it might have been a code "31"
If so you better get you a HAYNES Repair manual because that code covers a lot of things in the fuel system.
Gas cap would have been the first thing to check/replace
Dan
"Can You Hear Me Now"........................................GOOD !!!!!!!!!!!!!!!!!!!!!!!!!
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Texas97
*GenIII*
10/30/2002
13:12:23
| RE: Check Engine Light
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Message:
I have a Haynes manual, and I dont exactly know the number on the code, but I will look into the 31 code. It had something to do with fuel system not being air tight. I might go back to them and get the exact number and error code description so I can try to fix it. I didnt know the Haynes manuals had the codes that are read by ODBII scanners, I thought they only told about the computer code that the system gives when you code check on the dash.
Gig 'em Ags!
Kick the tires and light the fires!
97 Dakota CC 3.9L 5 speed
Mods: A lot of fun stuff
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DakotaDan
*GenIII*
10/30/2002
17:31:07
| RE: Check Engine Light
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Message:
Chapter 6 "Emissions and engine control systems"
Page 6-5
It lists the Check Engine Light flash code & Scan tool codes.
I have a 01 Dak but this 97-99 Manual has been a big help with the tinkering I've done to my truck
Dan
"Can You Hear Me Now"........................................GOOD !!!!!!!!!!!!!!!!!!!!!!!!!
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viperdak6
Dodge Dakota
JOIN HERE
10/30/2002
20:10:14
| RE: Check Engine Light
IP: Logged
Message:
Texas97,
check the vaccum caps on both sides of the intake manifolds, dodge used too big of vaccum caps and for some reason, as soon as i put my throttle body on and started the truck up, i looked under the hood (after bernd told me to check it...smart guy) and it was missing, it was the one on the passenger side, about the same level as the IAT sensor, the dodge dealership just gave me a new one, i put it on, retset the computer, and it was fixed
let me know if this works
Good luck,
Brian
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Texas97
*GenIII*
10/30/2002
20:42:20
| RE: Check Engine Light
IP: Logged
Message:
Yeah, that was one of the first things i checked way back when i put that thing on.. i may check it again, and see if it didnt get blown off of there. Ill let you know. Thanks!
Gig 'em Ags!
Kick the tires and light the fires!
97 Dakota CC 3.9L 5 speed
Mods: A lot of fun stuff
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icemanky
Dodge Dakota
JOIN HERE
10/30/2002
23:28:35
| RE: Check Engine Light
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Message:
an air leak on injectors (if not really bad) won't cause the light to come on at all.. i took out my injectors and tore 3 o-rings and didn't have new 1's to put in soo i left them alone they are leaking just enough to hear them but that was over 5000 miles ago and still no engine light... lol i've had the new rings for a month now but just too darn cold outside and i'm just too darn lazy to change them now what's the code # anyways??? check it and go to edmunds.com and look up the code there... hope that helps
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Texas97
*GenIII*
10/31/2002
02:10:11
| RE: Check Engine Light
IP: Logged
Message:
Yeah, i got to go have it read at the autozone... all the built-in reader says is 12. And that means power was disconnected at the battery. I may not be able to get to the Autozone till Friday or Saturday. Ill let yall know what I find.
Gig 'em Ags!
Kick the tires and light the fires!
97 Dakota CC 3.9L 5 speed
Mods: A lot of fun stuff
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Matthew Ross
Dodge Dakota
JOIN HERE
2/08/2003
11:46:16
| RE: Check Engine Light
IP: Logged
Message:
on my 92' all im supposed to do to reset the check engine light and clear out the codes, is turn the the ignition from off to the "on" position 5 times consecutively. as for the maintenece required light, the dealership has to turn that off, all that involves is being plugged in and they push a button on whatever its plugged into and it goes off... its like the thing triggers at so many miles or something...
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chris
Dodge Dakota
JOIN HERE
2/08/2003
12:32:54
| RE: Check Engine Light
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Message:
how can you have a 2 didgit code on a 98 with OBDII diagnostics.
im welling to bet that the map sensor is causeing the problem because the bigger throttle venturi's allow more air and the engine may be losing a little more vacum when starting out,thus tripping the sensor and leading the PCM to believe there is a problem.
the high idle issue is probably a vacum leak at the throttle body itself. the very fine machined surface wont seal as well as a honed surface. most TB work ive dont ,i used permatex aviation gasket sealer just for that reason.
but untill then has anybody tried to check if there is a difference between the map sensor on a 3.9 to the ones on the V-8's
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DakotaDan
*GenIII*
2/08/2003
12:44:27
| RE: Check Engine Light
IP: Logged
Message:
I belive I have read the the V6's use a 1 bar MAP and the V8's use a 2 bar MAP
Dan
Next Time You Think You're Perfect
~~~~~Try Walking On Water~~~~~
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Calvin
Dodge Dakota
JOIN HERE
4/07/2003
20:01:01
| RE: Check Engine Light
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Message:
I was driving my 1997 Dodge Dakota on the expressway and it wanted to quit running. I took it to Auto Zone and they scanned a P0132 code.They told me they had no idea what could be wrong with it. I would appreciate any help on where I can get started to find my problem.
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chris
Dodge Dakota
JOIN HERE
4/07/2003
21:13:23
| RE: Check Engine Light
IP: Logged
Message:
Upstream O2 sensor response slower than minimum required switching frequency or value does not go above .65 volts (sensor slow to respond)
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Al
Dodge Dakota
JOIN HERE
4/16/2003
23:27:05
|  RE: Check Engine Light
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Message:
This is the second and last time I'm paying $90 to have a tech. turn off my check engine light because the gas cap was loose. does anyone know how to reset this damn go-on-and-stay-on-till-you-pay-to-have-it-turned-off light for a 2000 Dakota?
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tom hodkin
Dodge Dakota
JOIN HERE
4/20/2003
14:42:55
|  RE: Check Engine Light
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Message:
un hook your bat. for 10 sec. then hookit back up your code is gone as in poof
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Rick Garza
Dodge Dakota
JOIN HERE
4/27/2003
22:22:46
| RE: Check Engine Light
IP: Logged
Message:
I came to a stop, then started to take off when my
1999 Dakota started to bog down then the Check Engine
light came on. It did this one more time on the way
home. I know its the transmission not going back
into 1st gear when slowing down. Now, it has not
done it since then but the check engine light stays
on. How do you get the code? And where can I get
the list for what the codes are? I disconnected the
battery but the Check Engine light comes when the
truck shifts into second gear. Help. Thanks!
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Tom Conroy
Dodge Dakota
JOIN HERE
7/12/2003
16:42:58
| RE: Check Engine Light
IP: Logged
Message:
Here's an interesting story, and solution to the engine light issue. I have a 2001 Dakota, my wife a 99 Intrepid, both Chrysler. On the same day, we both get the check engine icon.(I wonder if Chrysler activates these by satellite!) What I did for BOTH vehicles is turn the ignition ON,OFF,ON,OFF,ON.. to display the codes. Be sure the total vehicle mileage is showing digitally before this. Wait 1-2 seconds and a "P" followed by 0 and three digits will show up. After the first code, wait a second or two and if needed, more codes will display. After all codes have been displayed DONE will appear. If a gas cap was loose etc, you'll see codes 0442,0443,0455,0456. Don't do as I did and go to the dealer to clear the codes. It cost me $76 hard earned dollars! Unhook your NEGATIVE side of the battery for at least 15 seconds. While unhooked, turn your ignition to the ON position for about 10 seconds to clear any stray voltage from the computer. I found out about the codes at WWW.PTcruiser.com/computer-codes.html They have all of the OBDC II codes. Watch that gas cap...Those damn dealers. Good luck!
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Shank
GenII
7/12/2003
23:36:47
| RE: Check Engine Light
IP: Logged
Message:
Try this, It covers most years and what your code #'s are/mean and some helpful advice on how to fix them:
http://autorepair.about.com/library/ts/obd-i/bl-dtcs-main.htm
Good Luck
Shank
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DakStreeRacer
Dodge Dakota
JOIN HERE
7/12/2003
23:56:55
| RE: Check Engine Light
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Message:
I have had this problem as well with the check engine light being on, I've done everything from going back to stock air system to re-setting it with the whole battery deal and all that stuff. Well I got a friend that works a dealership and he said "Yea we've been having a lot of these problems latly." It was the gas cap. If you take your cap and look in the center where the Emmision Control Valve or vent, there will be a rust or a rust color. Meaning that it's not creating a true pressure vacume in your tank. Every time you put gas in a you close your cap it creates pressure in your tank, and this is why it wasn't doing that. He just ordered me another cap and it went right off. Shouldn't charge you anything becasue I think it was a un-listed re-call.
Keep it low and slow
D
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postman
Dodge Dakota
JOIN HERE
7/14/2003
09:21:03
| RE: Check Engine Light
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Message:
The only way to get the light off on OBDII is to hook it to a tester. I bought a tester at Pep-Boys for about $150. and it has already paid for itself by not having to go to the dealer. You can also get some money back by checking all your buddies cars or trucks that have OBDII, I believe it's from 96up. Disconnecting the battery OBDII won't shut the light off. Hope this helps
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Mr Hanky
Dodge Dakota
JOIN HERE
7/14/2003
23:59:53
| RE: Check Engine Light
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Message:
That's incorrect, postman. With the truck off, just unplug the back connector from the computer and leave if off for a minute. This will reset the light but it will come back on if the problem has not been corrected.
I have to reset mine every 5 months of so for some mysterious problem that trips the MIL but doesn't set a code. The truck actually runs better after doing this.
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postman
Dodge Dakota
JOIN HERE
7/15/2003
11:13:29
| RE: Check Engine Light
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Message:
Mr Hanky, if you have to reset your comp every five months, don't you think you have a problem? Hook the OBDII tester up to get the code. A book comes with the tester to decipher the codes. Also thanks for the tip about disconnecting the comp plug. The dealer told me you could only clear it by hooking up. But they wanted $75.00 just to check it. I have already got my money back on mine by testing other vehicles.
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