Car won't start!
TECH Fanatic
Joined: Oct 2022
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From: Louisiana
Have you verified that your fuel pump is coming on and if so have you checked fuel pressure? Sounds like the pump is either weak or your having an issue with your injectors but I'd start with checking the pump. If starter fluid is making it crank then that's a dead giveaway that's your having a fuel problem.
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From: Ann Arbor, MI
What throttle body (TB) is on the intake? Did you reuse the 90mm TB or did you buy a new bigger one? As I suspect this is a DBW car, assuming you bought a bigger TB, what did you buy? You might want to just reinstall the original TB until you get it running again.
Also, as @Tommy42088 has requested, what is your fuel pressure at the rail? Until you know for sure, we are just guessing here and really need that measurement to help you further.
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Have you verified that your fuel pump is coming on and if so have you checked fuel pressure? Sounds like the pump is either weak or your having an issue with your injectors but I'd start with checking the pump. If starter fluid is making it crank then that's a dead giveaway that's your having a fuel problem.
Yes, and your 102 Fast intake also affects the tune, especially at idle.
What throttle body (TB) is on the intake? Did you reuse the 90mm TB or did you buy a new bigger one? As I suspect this is a DBW car, assuming you bought a bigger TB, what did you buy? You might want to just reinstall the original TB until you get it running again.
Also, as @Tommy42088 has requested, what is your fuel pressure at the rail? Until you know for sure, we are just guessing here and really need that measurement to help you further.
What throttle body (TB) is on the intake? Did you reuse the 90mm TB or did you buy a new bigger one? As I suspect this is a DBW car, assuming you bought a bigger TB, what did you buy? You might want to just reinstall the original TB until you get it running again.
Also, as @Tommy42088 has requested, what is your fuel pressure at the rail? Until you know for sure, we are just guessing here and really need that measurement to help you further.
I may need to get it tuned by the local tune shop I go to.
Here's what happen, because I was able to get it started with starter fluid and keep it running with the pedal, I figured I should reinstall the OEM tune ( the OEM tune was changed a bit and I think that may have caused the problem).
I used my interface to install the base tune, once that was installed, I was able to start it with starter fluid, after the idle settled it was idling fine and on its own.
Idle was maybe 800rpm. I think it safe to say that its starts and runs but I haven't started it without starter fluid. Starting it without starter fluid is next.
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Joined: Aug 2010
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From: Ann Arbor, MI
Are you run with or without a MAF?
If without a MAF, try opening the PCV port on your intake manifold to allow in some extra air. However with a MAF, all air should be correctly metered. If this works, your tuner should be able to adjust things so that you have your PCV connected again.
If without a MAF, try opening the PCV port on your intake manifold to allow in some extra air. However with a MAF, all air should be correctly metered. If this works, your tuner should be able to adjust things so that you have your PCV connected again.
Thread Starter
TECH Apprentice
Joined: Oct 2007
Posts: 311
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Are you run with or without a MAF?
If without a MAF, try opening the PCV port on your intake manifold to allow in some extra air. However with a MAF, all air should be correctly metered. If this works, your tuner should be able to adjust things so that you have your PCV connected again.
If without a MAF, try opening the PCV port on your intake manifold to allow in some extra air. However with a MAF, all air should be correctly metered. If this works, your tuner should be able to adjust things so that you have your PCV connected again.
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Thread Starter
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So I removed the PCV from the intake and it didn't start. I will try starting it again with starter fluid after it warms up, I will attempt to start it with the PCV hose disconnected from the intake.
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So it started with starter fluid got it to 185 degrees. I revved it and held idle. I attached a video of it.
I shut it off and attempted to start it, nothing happened. 30 minutes later I reuploaded the OEM tune and attempted to scan it and to my surprise it started. There was a slight delay before it started but it started, however, once I shut it off it didn't start up again.
I am guessing that the first fuel spray upon cold start up isn't giving the right amount. I say that because I came across a thread that mentioned cold start up enrichment. But I'm not sure.
I shut it off and attempted to start it, nothing happened. 30 minutes later I reuploaded the OEM tune and attempted to scan it and to my surprise it started. There was a slight delay before it started but it started, however, once I shut it off it didn't start up again.
I am guessing that the first fuel spray upon cold start up isn't giving the right amount. I say that because I came across a thread that mentioned cold start up enrichment. But I'm not sure.
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Update and Close I've had this thing running for a little while now and wanted to share what the root cause was incase people wanted to know. So, the Michigan Motorsport extension adapter wire harness I bought was wired incorrectly. 2 of the 3 wires were crossed causing it not to start. A code related to MAP sensor queued me in to look at the extended wire harness. The harness is a good product, but I believe batch of them might have gone out that way, for there are others who have experienced the same crossed wire problem.
Thanks for all the help.
Thanks for all the help.
