Ok so we noticed a serious problem today while trying to flash the ecu, I installed the LSJ injectors yesterday, and with out the flash idled fine and ran a little richer then normal, and now today the car wouldn't even start start or even run without more then 1/2 throttle... Which is odd because it ran perfectly before today..
But we got that code, and some other's which we knew of, and some symptoms include poor fuel economy, possible no start condition. Our symptoms were it was running pig ass rich like more black smoke then my old car on 750cc injectors, and wouldn't stay running for the life of it...
Fixes include new plugs, new plug wires, new cam sensor (which we dont have (eco)), possible bad wiring, or bad coil.
I have new plugs, no plug wires, duh, no cam sensor and the wiring is fine. So... what should I look at next?
Edited 1 time(s). Last edited Sunday, March 29, 2009 5:41 PM
LE61T PTE6262 Powered 
Is the injector constant correct?
Well what kind of "flash" are you doing? Double check the calculations for the injector constant, that could be it.
And is this 2 people posting on your name Phil or am I still a lil drunk? lol
well PJ kinda went and changed some things for me, but we flashed it back to stock and didnt have time to check cause we got hit by a tornado... I aint lying lol
LE61T PTE6262 Powered
You werent doing a sc flash for anything were you? If so then you would have to calculate the injector constant for the gmsc kit injectors, not based off stock.
Nah I had LSJ Injectors in 380cc... we think the constant was off... cause it wouldn't run and was shooting out black smoke
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lsj's are 378cc, not sure if it would make that much of a difference though. Yea search to see what formula others have used with them in the eco, not sure what size the stock eco injectors are.
we will when we have time
LE61T PTE6262 Powered
What the hell does fuel injectors have to do with a camshaft position? God, the freaking stupidity around here kills me.
Are you aware of what the P0341 code even is?
A code P0341 may mean that one or more of the following has happened:
Cam sensor wiring routed too close to spark plug wiring (causing interference)
Poor wiring connection at cam sensor
Poor wiring connection at PCM
Bad cam sensor
Damaged reluctor wheel
For those of you that still think it has something to do with fuel injectors it happens with the stock tune and stock fuel injectors also
1989 Turbo Trans Am #82, 2007 Cobalt SS G85
I am putting my money on a crimped wire or something or the fact of not a good signal cause there is no dieletric grease
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Actualy I had forgot all about the code, was just going off of what phil said which made it seem like it was fine until you guys modified the pcm for the injectors.
Phil did you have to splice any wires on the harness or do anything that it could get pinched or something?
No... that's the wierd thing, saturday or sunday I am gonna go over to the car and run it and see if maybe it was just the flash or something and go over all the wiring... (also add some di-grease to all the spark boots)
LE61T PTE6262 Powered
the code was present before the reflash, so that has nothing to do with it
1989 Turbo Trans Am #82, 2007 Cobalt SS G85
Rodimus Prime wrote:the code was present before the reflash, so that has nothing to do with it
So what's the problem genius?
Rodimus Prime wrote:the code was present before the reflash, so that has nothing to do with it
Which is why I was asking about the tuning done and you made it seem like I was stupid? If the code was present before the injectors/tuning than theres a good chance the problem isnt related to the code.
