I got it on video
That will definatly help you hunt down the problem!! You can watch your Iac counts, your Iac flow tps voltage, and about 200 other perameters. Not sure but you might be able to pull your tune and look at it with the free trial of EFI Live tuning. You wont be able to change it but at least you can see it.
Can anyone verify that you can pull and look over your tune with just the scanner and the free trial of EFI Live???
Can anyone verify that you can pull and look over your tune with just the scanner and the free trial of EFI Live???
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I spent all day detailing the paint and finally got out for a test drive. It ran great forabout 8 miles (10 minutes of warmup first) and then started in again. I stopped and revved it to settle it down to normal idle and then unplugged the IAC. It ran normal with the IAC unplugged. I did this a few times to verify repeatability and it is defeintely the IAC driving the idle up...now the question is, is the IAC the bad actor or is there a parameter that is causing the PCM to drive the IAC??? I should know real soon. I'm going to order the scanner in the next few days.
I spent all day detailing the paint and finally got out for a test drive. It ran great forabout 8 miles (10 minutes of warmup first) and then started in again. I stopped and revved it to settle it down to normal idle and then unplugged the IAC. It ran normal with the IAC unplugged. I did this a few times to verify repeatability and it is defeintely the IAC driving the idle up...now the question is, is the IAC the bad actor or is there a parameter that is causing the PCM to drive the IAC??? I should know real soon. I'm going to order the scanner in the next few days.
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This is a long shot but check your traction control cables if you have them. If they are too taught or loose it may lead to sticking cables.
I'm having a similar issue. After installing an LS6 intake and ported TB the RPMs would act up. I eliminated TCS with a single cable coming from the gas pedal. The idle will hang at like 1500rpms and then drop to 900-1000 at a red light with clutch disengaged.
I am getting my tranny rebuilt, new clutch, new slave soon. I also plan on getting HPTuners so I can tune this car like my Camaro. I will also check for vac leaks or faulty sensors.
Good luck
Andy
I'm having a similar issue. After installing an LS6 intake and ported TB the RPMs would act up. I eliminated TCS with a single cable coming from the gas pedal. The idle will hang at like 1500rpms and then drop to 900-1000 at a red light with clutch disengaged.
I am getting my tranny rebuilt, new clutch, new slave soon. I also plan on getting HPTuners so I can tune this car like my Camaro. I will also check for vac leaks or faulty sensors.
Good luck
Andy
I didn't go through all the posts, but to me, it sounds like you need to relearn the throttle position on that computer. Put it back in and see wha the throttle reads with the key on. If it is anything but 0, you need to relearn it. There is a post on here somewhere on how to do that.
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I didn't go through all the posts, but to me, it sounds like you need to relearn the throttle position on that computer. Put it back in and see wha the throttle reads with the key on. If it is anything but 0, you need to relearn it. There is a post on here somewhere on how to do that.
EFI Live Scan only is $250. Full tune version is $500.
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So, it will likely be frustrating waiting for the UPS truck, but that sure beats being blind to my motor.
I need some cold dry days to replicate the problem. The roads are wet and temps are 30F-45F for now.
The datalogging of the V1 is great. With on a few runs and while on the steep slope of the learning curve I've already found great info. (injector DC 82%@107mph WOT.)
Tuning is like Asimov's famous quote on science, "Science [insert "tuning"] is always wrong. The trick is to be less wrong today than we were yesterday."
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Now in EFI Live
I can't beleive it. I just got through saying how great the car has been running. I head out to run some errands, hook up the Flashscan to gather some O2 data and then it goes into high idle again. Well this is the whole reason I bought EFI Live so I swap PID files and go to my IAC file which of course has all of the IAC PIDs on plus RPM, TP and a few others. It seems that the high idle is triggered from the AC, but not always.
Here's a couple log files. #14 has all of he vacuum ports on the front end of the motor plugged off.
I can't beleive it. I just got through saying how great the car has been running. I head out to run some errands, hook up the Flashscan to gather some O2 data and then it goes into high idle again. Well this is the whole reason I bought EFI Live so I swap PID files and go to my IAC file which of course has all of the IAC PIDs on plus RPM, TP and a few others. It seems that the high idle is triggered from the AC, but not always.
Here's a couple log files. #14 has all of he vacuum ports on the front end of the motor plugged off.
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and this was 0MPH inside my shop. Again with the vacuum ports blocked off.
When I turn the AAC off it will hunt around and then settle back down to normal idle. Sometimes it really hunts around first.
I created a dashpage with RPM and TP on the same chart...looks pretty interesting.
When I turn the AAC off it will hunt around and then settle back down to normal idle. Sometimes it really hunts around first.
I created a dashpage with RPM and TP on the same chart...looks pretty interesting.
Last edited by ssheets; Jan 17, 2008 at 05:58 PM.