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jjj
Dodge Dakota
JOIN HERE
9/28/2002
19:19:49
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 Subject: RE: MAP Sensor ... Bernd? Anyone?
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I don't know if this will help any, since I don't have a turbo or SC :(
But the older turbos used a different map that still used the 0-5V but it basically read close to 1/2v of the EFI map. The only problem would be to reflash the PCM to utilize this new reading. If you can get that done I think it would work perfectly.
Jeff
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Bernd
*GenIII*
9/29/2002
10:06:53
|  RE: MAP Sensor ... Bernd? Anyone?
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Message:
That is correct. You can use an older 2-BAR MAP on our trucks (T/A Turbo 2-BAR MAP for example) and the voltage is only from 0-5V. I tried one and it fixed a few issues at 1/2 throttle...but definitely requires custom programming.
I had spoken with several of the custom Mopar PCM programmer and they all stated the same thing (unfortunately)...the space available for the program isn't enough for a 2-BAR MAP table.
1997 Dodge Dakota SLT - V6
Supercharged/Intercooled @ 10# w/Nitrous
14.55 @ 96.01mph
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rt5.9stroker
Dodge Dakota
JOIN HERE
9/29/2002
18:50:01
| RE: MAP Sensor ... Bernd? Anyone?
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hi berd will 24 pd injectors work on a 98 dodge dakota v-6 3.9 jet chip stage 2 , cat back ex,
s- bolt , tb 48mm. i got them for free of a freind
that was not using them. they do fit but you always say 19 pds fms. will it run wrong or will it make it run better with out problems.
??? help
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kota on 20s
GenIII
9/30/2002
00:51:48
| RE: MAP Sensor ... Bernd? Anyone?
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Message:
bernd, after i did the check valve thing, i notice a hesitation when hitting the gas. is there a way around this? my TPS is set at 0.87V
-Eric
Injection is nice, but i'd rather be blown.
5.2L, 5speed. Powerdyne SC, 50mm TB, 2bbl M-1, 1.7RR's, MSD 6BTM, ciramic JBA headers, carsound cat, dumped gibson
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Bernd
*GenIII*
9/30/2002
01:02:58
| RE: MAP Sensor ... Bernd? Anyone?
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Message:
(1) Your TPS setting is too high - Max is .9v and the .87 is too close to the limit. Set it back to .8v if you want it that high...but .7v-.75v is more than plenty.
(2) You posted that it was working fine earlier (Check valve on the MAP sensor) - Did you change something?
1997 Dodge Dakota SLT - V6
Supercharged/Intercooled @ 10# w/Nitrous
14.55 @ 96.01mph
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kota on 20s
GenIII
9/30/2002
01:11:15
| RE: MAP Sensor ... Bernd? Anyone?
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Message:
when i posted that it was fine, was right after i "test drove" it around the block. it did not chug anymore, but after driving it for a day or so, i can feel the hesitation. is it just a side effect from the check valve setup?
BTW, i had the TPS set at .89V with the stocker, and did not feel the hesitation.
-Eric
Injection is nice, but i'd rather be blown.
5.2L, 5speed. Powerdyne SC, 50mm TB, 2bbl M-1, 1.7RR's, MSD 6BTM, ciramic JBA headers, carsound cat, dumped gibson
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Bernd
*GenIII*
9/30/2002
01:12:46
| RE: MAP Sensor ... Bernd? Anyone?
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Where does the hesitation become apparent? (Under what condition?)
1997 Dodge Dakota SLT - V6
Supercharged/Intercooled @ 10# w/Nitrous
14.55 @ 96.01mph
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kota on 20s
GenIII
9/30/2002
01:21:40
| RE: MAP Sensor ... Bernd? Anyone?
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Message:
when i get on the gas hard, it just hesitates for a second, then starts pulling. pretty much from about 3/4 throttle to WOT
-Eric
Injection is nice, but i'd rather be blown.
5.2L, 5speed. Powerdyne SC, 50mm TB, 2bbl M-1, 1.7RR's, MSD 6BTM, ciramic JBA headers, carsound cat, dumped gibson
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bassboy170
Dodge Dakota
JOIN HERE
9/30/2002
02:28:38
| RE: MAP Sensor ... Bernd? Anyone?
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hey kota i know this might sound stupid but u have to trust me on this one try changing your throttle body to stock i will guarantee it will fix the problem i had the same thing happen to me and tom from mike leach told me to switch back to stock and but i kept puttin it off because i didnt want to believe it but when i changed it i was like holy $hit what a diffference let me know how u make out
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kota on 20s
GenIII
9/30/2002
02:44:49
| RE: MAP Sensor ... Bernd? Anyone?
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Message:
i did have the stock TB on.. and i had no problems. when i switched to the 52mm, it chugged, so i did the check valve mod, and it fixed the chugging issue.
the only issue i have now is, it hesitates when i get on it. its not that big of a deal, just kind of annoying. the power differance between the stock and the 52, is big enough that it dosent make me want to go back to stock.
-Eric
Injection is nice, but i'd rather be blown.
5.2L, 5speed. Powerdyne SC, 50mm TB, 2bbl M-1, 1.7RR's, MSD 6BTM, ciramic JBA headers, carsound cat, dumped gibson
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bassboy170
Dodge Dakota
JOIN HERE
9/30/2002
03:15:13
| RE: MAP Sensor ... Bernd? Anyone?
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Message:
i dont know because my truck runs better with the stock throttle body on it i sent mine back to flowmetrics i heard that they dont work good with boost im going to try to dyno my truck again with the stock throttle body back in and see what happened it made 330hp to the wheels i wonder if it increased with the stock throttle body?
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bernd
*GenIII*
9/30/2002
12:18:04
| RE: MAP Sensor ... Bernd? Anyone?
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Kota: The 50mm would be more suited for the 5.2L. (Even with a S/C)
1997 Dodge Dakota SLT - V6
Supercharged/Intercooled @ 10# w/Nitrous
14.55 @ 96.01mph
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dr0p0ff
GenIII
9/30/2002
15:58:28
| RE: MAP Sensor ... Bernd? Anyone?
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Message:
while you guys are on the TB for the SC thing... i put up another post that went by the way side. my question there was is it worth it to run the 72mm with the kenne bell? the intake on the SC doesn't look like its any bigger than the stock TB... maybe it is, i've never seen one up close, but it doesn't look like it.
Keep On Truckin!
Sgt G
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kota on 20s
GenIII
10/01/2002
00:28:36
| RE: MAP Sensor ... Bernd? Anyone?
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Message:
bernd, if i went with a 50mm fastman, do you know i will be able to run it without the checkvalves, and not get any chugging?
i think i am going to call dan tomorrow and explain what is happining,and see if he will switch them
-Eric
Injection is nice, but i'd rather be blown.
5.2L, 5speed. Powerdyne SC, 50mm TB, 2bbl M-1, 1.7RR's, MSD 6BTM, ciramic JBA headers, carsound cat, dumped gibson
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Bernd
*GenIII*
10/01/2002
09:07:59
| RE: MAP Sensor ... Bernd? Anyone?
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Message:
Kota: It should help out a little bit as the MAP signal doesn't drop as quick as on a 52mm. In my case...I had less problems with the stock 48mm as with a 50mm (52mm is too big for a V6) but the HP gains were much better with the aftermarket TB. As long as you can get around the "bog", the gains slightly outweigh the small bog issue. Just keep in mind that there are alternative ways to properly fix the "bog"...but they range from $300-$600 on the average (aftermarket MAP controllers).
Dropoff: The modified TB will help out with airflow requirements and will also perk up the performance right out of the hole. Since the 4.7L KB kits use a MAF and MAP sensor...the "bog" problems isn't there (on the 4.7L only).
1997 Dodge Dakota SLT - V6
Supercharged/Intercooled @ 10# w/Nitrous
14.55 @ 96.01mph
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conig
Dodge Dakota
JOIN HERE
10/01/2002
11:16:07
| RE: MAP Sensor ... Bernd? Anyone?
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bernd- do you know the signal wire for the map sensor on a 2000 4.7l.
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bernd
*GenIII*
10/01/2002
13:58:07
| RE: MAP Sensor ... Bernd? Anyone?
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It's the middle one on the MAP sensor connector. (Same one as the 3.9/5.2/5.9L)
1997 Dodge Dakota SLT - V6
Supercharged/Intercooled @ 10# w/Nitrous
14.55 @ 96.01mph
|
conig
Dodge Dakota
JOIN HERE
10/01/2002
18:56:15
| RE: MAP Sensor ... Bernd? Anyone?
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thanks bernd, I'm gonna try and install it tonight.
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