Starting issue
Thread Starter
Intermediate
Joined: Nov 2012
Posts: 32
Likes: 0
I am sorry I misunderstood you post, when you car cranks but fails to start, it means that you are not providing either spark or fuel or something else is going on. Your ignition switch contacts provide power to several modules including the ECM, I still believe that you may have problems with the ignition switch contact block.
Thread Starter
Intermediate
Joined: Nov 2012
Posts: 32
Likes: 0
Had a new fuel pump and injectors put in about 2 Years ago when I had my supercharger installed. Could the the filter, don't know the last time that's been changed.
Thread Starter
Intermediate
Joined: Nov 2012
Posts: 32
Likes: 0
P1689 hc
P1571 hc
P0153 hc
P0133 h
U1064 h
U1000 h
C2115 hc
C2110 hc
C2105 hc
C2100 hc
B2285 h
B0521 h
B0516 h
U1040 hc
Had to pull fuses for ebcm, cause it's ****ing with my brakes so that's why I have those code. Only ones that are the first time seeing is b0516 and b0521 but they only history so not worried. 02 sensors ones p0153 and p0133 are not installed butyl that's been for a long while now.
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
If you pull the codes AFTER you turn the engine OFF, almost all codes will show as H.
If you have an issue that is "locked in" pull them before you turn the engine off to see if anything is C. To do that you will need to reset any DIC messages first to get the codes.
Not at home to post the diagnostics on B0512 and B0521.
Mr. Sam
If you have an issue that is "locked in" pull them before you turn the engine off to see if anything is C. To do that you will need to reset any DIC messages first to get the codes.
Not at home to post the diagnostics on B0512 and B0521.
Mr. Sam
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
Here are the diagnostics.
https://www.dropbox.com/s/0se90pkaq0...stics.pdf?dl=0
https://www.dropbox.com/s/uwamduns54...B0521.pdf?dl=0
Clear your codes and lets see what comes back. You must post under what module the U codes are under. They can show up under various ones.
Mr. Sam
https://www.dropbox.com/s/0se90pkaq0...stics.pdf?dl=0
https://www.dropbox.com/s/uwamduns54...B0521.pdf?dl=0
Clear your codes and lets see what comes back. You must post under what module the U codes are under. They can show up under various ones.
Mr. Sam
Melting Slicks
Joined: Nov 2009
Posts: 2,922
Likes: 219
From: West Branch, MI
Watching to see what you find. I'm wondering if you have an intermittent ground wire that is making connection sometimes and sometimes not. I'd def check the ground for the fuel pump.
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From: South Western Ontario
There is no fuel pressure sensor so it's impossible for the PCM to even know the fuel pressure let alone shut down on low fuel pressure. However, if it goes low enough then there won't be enough fuel to run the engine.
Thread Starter
Intermediate
Joined: Nov 2012
Posts: 32
Likes: 0
Sorry for no update recently, it hasn't happened since friday, maybe I had some bad gas in the car? No idea, it's been starting up no the first time every time. My oil pressure is always great, anywhere from 50-80 psi usually. Though my oil pan leaks like most other c5s, had to add more oil a few days ago, think that could have had anything to do with it?
Thread Starter
Intermediate
Joined: Nov 2012
Posts: 32
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Well car died after a few seconds again today. Had left the key in the ignition and kept trying to crank it and it was struggling, im thinking its the ignition block. I took out the key and it put it back in, and it started up fine. tommorrow Ill try taking it apart again and take a look