Help with a problem..

[AtomicVette]

My car doesn't idle smooth, it's like it misses at idle, it may be missing at higer RPMs as well, but not noticably. I've replaced plugs, and wires, tried a different set of injectors, different set of coils, new O2 Sensors, New Coolant Temp sensor, but it still misses.. what shoud I check next.??

[DaveX]

If you haven't already done it, best bet would be some diagnostic software so you can check for codes and get a read off of the 02's. If it's really missfiring it should throw codes and a flashing ses. I believe there is also and idle speed sensor but not sure on that one.

[AtomicVette]

Yes I have EFI Live, there are no codes, one thing i've noticed that is kinda odd is that when I go WOT, my LTFT's don't go to 0, they are like .4 sometimes 1 I think. I'll post up a log here in a minute.

here's the log (http://www.fbodypages.com/efilive/novortechafterheadshighway.csv)

[JandJsTA]

Run some misfire logging on individual cylinders and see what you get :)

[2002ws6_mn6]

:werd:

Record current and history missfire PIDs, O2's, LTFT's, RPM, MAF..

And list your mods.

[AtomicVette]

:D already got it. I don't really understand it though, the missfire count is the same on all cylindars at any given time .:confused: :confused:

Missfire Log (http://www.fbodypages.com/efilive/novortechafterheadsmissfire.csv)

here's my mods

LS6 Intake
LS6 Valve Springs
3400 Stall Converter
Stage III TransGo
JetHot Long Tubes/No Cats

My Sig show's a Vortech, but it's not hooked up at the moment, pending finding what's wrong while I'm NA.

[JandJsTA]

Originally posted by Justin98TransAm
:D already got it. I don't really understand it though, the missfire count is the same on all cylindars at any given time .:confused: :confused:

Missfire Log (http://www.fbodypages.com/efilive/novortechafterheadsmissfire.csv)

here's my mods

LS6 Intake
LS6 Valve Springs
3400 Stall Converter
Stage III TransGo
JetHot Long Tubes/No Cats

My Sig show's a Vortech, but it's not hooked up at the moment, pending finding what's wrong while I'm NA.

Something is not correct with that log... the misfire PIDs are mimicking your Fuel Trim Cells :confused:

[JandJsTA]

Originally posted by JandJsTA
Something is not correct with that log... the misfire PIDs are mimicking your Fuel Trim Cells :confused:

You may also want to read thorugh the LS1edit email archives as there are some threads about higher stalls causing problems although I didn't see any with my ViG 3200

http://www.ls1edit.com/pipermail/ls1edit/20030605/007398.html

You can use Google to search the email database, example below


Misfire site:www.ls1edit.com .....the first word being your search criteria :)

[AtomicVette]

sweet! I didn't know that syntax for google! Learn something new everyday.. :D

[2002ws6_mn6]

Justin..

:worship: Your Website (http://www.fbodypages.com/justin98transam/index.htm)

Nice ride..
BTW - I bought the same HPI 200mm RC Trans Am body for my RC truck.. Haven't painted it yet.. Looks awesome...

Okay, back to the original topic at hand...

[AtomicVette]

Originally posted by 2002ws6_mn6
Justin..

:worship: Your Website (http://www.fbodypages.com/justin98transam/index.htm)

Nice ride..
BTW - I bought the same HPI 200mm RC Trans Am body for my RC truck.. Haven't painted it yet.. Looks awesome...

Okay, back to the original topic at hand...

:D thanks for the comments on the website... it's way overdue for a revamp.