Hey guys so ive been fixing problems since I bought the car, first was cooling issue, now its a stumble or missfire?
When I bought the car it had a really tough time idling, would stall at stop lights or when I would release throttle. At WOT it would stumble or missfire. Scanmaster was telling me a few things, MAF wasnt working smoothly, IAC and TPS needed adjusting. Figured id hit everything at once....
Here is what I did this weekend....
Racetronix 460LPH with 8an Feed and 6an return, PTFE of course
Hotwire, also grounded the battery to frame
New stock MAF (yes im going with LS1 but this is temporary, im building a custom intake)
New E3 Plugs ( gap seems high on these but seems like alot of happy E85 guys like them)
New Coil and ignition module
02 Sensor
TT 5.7 E85 chip.
Here is what it fixed:
I can start the car without throttling the pedal
Idle is smooth
Can give it gas in park and RPMs are very smooth(unlike the choppieness before)
Runs like a rapped ape when it doesnt stumble
My AF on scanmaster will hit 255 before it was 230
Here is what im still dealing with:
WOT it will stumble, missfire, buck.... it will happen once or twice during the WOT run. It feels like 100% power then boom 0% in .5 seconds. No codes but will light up check engine light for that second.
-Knock only seems to happen when it shifts?(6 is the highest, for a brief second)
-02 reading are high 780-850
-Out side of that problem she runs freaking awesome..... but this is a problem to me and i dont want to move further until corrected.
Some things to point out:
-When installing the new chip, I couldnt find the orange ecm wire near the battery to disconnect. So i just unplugged both ecm connectors at the ecm and took the cables of the battery. This should have reset the ECM correct?
- I tried adjusting a few things on my chip through the scanmaster and it doesnt seem to stay, basicly when I enter, for example WOT Fuel all gears, the BLM stays at 128 even though i changed it to 137.
-15lbs of boost now hasnt changed since ive owned the car, dont want to up it til i figure the problem out.
Thanks for reading my novel and thanks for the help in advance.
When I bought the car it had a really tough time idling, would stall at stop lights or when I would release throttle. At WOT it would stumble or missfire. Scanmaster was telling me a few things, MAF wasnt working smoothly, IAC and TPS needed adjusting. Figured id hit everything at once....
Here is what I did this weekend....
Racetronix 460LPH with 8an Feed and 6an return, PTFE of course
Hotwire, also grounded the battery to frame
New stock MAF (yes im going with LS1 but this is temporary, im building a custom intake)
New E3 Plugs ( gap seems high on these but seems like alot of happy E85 guys like them)
New Coil and ignition module
02 Sensor
TT 5.7 E85 chip.
Here is what it fixed:
I can start the car without throttling the pedal
Idle is smooth
Can give it gas in park and RPMs are very smooth(unlike the choppieness before)
Runs like a rapped ape when it doesnt stumble
My AF on scanmaster will hit 255 before it was 230
Here is what im still dealing with:
WOT it will stumble, missfire, buck.... it will happen once or twice during the WOT run. It feels like 100% power then boom 0% in .5 seconds. No codes but will light up check engine light for that second.
-Knock only seems to happen when it shifts?(6 is the highest, for a brief second)
-02 reading are high 780-850
-Out side of that problem she runs freaking awesome..... but this is a problem to me and i dont want to move further until corrected.
Some things to point out:
-When installing the new chip, I couldnt find the orange ecm wire near the battery to disconnect. So i just unplugged both ecm connectors at the ecm and took the cables of the battery. This should have reset the ECM correct?
- I tried adjusting a few things on my chip through the scanmaster and it doesnt seem to stay, basicly when I enter, for example WOT Fuel all gears, the BLM stays at 128 even though i changed it to 137.
-15lbs of boost now hasnt changed since ive owned the car, dont want to up it til i figure the problem out.
Thanks for reading my novel and thanks for the help in advance.