93-02 V6 Tech V6 Camaro General Topics.

my first is a no start

  #1  
Old 12-15-2016, 07:47 PM
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New here and just got my first Camaro a 1993 V6 auto, was sitting for 2 yrs. It will start if you pour a little gas into intake then die, has fuel press just put in new pump, trap door was not too bad, at injector one side is hot and the is ground with key on, while cranking ground side pulses, but still no start, what the heck is left, pluged injectors from sitting so long? I have done a lot of studying here and has got me to this point but w/o a manual Im at a loss, got one on order. Any ideas would be great.
 
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Old 12-15-2016, 09:24 PM
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go here and download a manual. https://www.mediafire.com/?40mfgeoe4ctti
i guessing the battery has been dead so most likely no codes. might try flashing it to see.
 
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Old 12-16-2016, 05:18 AM
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Hey thanks, have not tried to pull codes yet, had the battery off and on so many times, and "they " said it ran when when granny had to park it, I have a new code reader for my truck an 05 I wonder if it will work on this older system. I did read somewhere that the ecm will shut down if no oil press is seen, well it worked at first till I broke it reaching for the oil filter, well the hunt goes on, If I can fix my 97 Lexus this should should be a breeze, yeah !
 
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Old 12-16-2016, 05:46 AM
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Since you've downloaded the manual by Craby's suggestion, you could
remove the return line into an empty gas can, pull out the fuel pump relay, jumper across relay socket turning pump on and pump out old gas and clean the lines.
Pour in fresh fuel, let it recycle for about a quart, connect return line, and let it pump for a couple minutes.


'93, I believe, would be an OBD 1 - rectangular connector.
Plenty of instructions how to retrieve DTC's.
Replace broken oil pressure sender.
Do a cylinder compression check - anything over 120 PSIG is good, lower PSI might mean timing chain jumped due to stretching/high mileage.
Use a really fresh battery.
 
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Old 12-16-2016, 12:42 PM
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Ok flushed fuel system, got new oil press sender, fuel press 45lb and holds, go between terminals on injector and get pulses when cranking, squirt a little fuel into intake and wants to start sounds like all 6 are firing then quits, try to pull codes and cooling fans come on but ck engine lite will not flash at all, I've cleaned every ground I can find, bad ecm?
 
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Old 12-16-2016, 04:22 PM
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pick up a injector noid light. make sure the injectors are being told to fire.
 
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Old 12-16-2016, 06:43 PM
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I've only tested the # 1injector and its getting a good signal, flashing a test light while cranking, compression is good, found a loos ground no change, the problem with the ecm not flashing the ck engine lite when A&B are jumped, is the ecm bad?
 
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Old 12-16-2016, 08:01 PM
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Correct, ECM not responding giving DTC 12.
Or bad connection at ALDL connector (DTC connector)
 
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Old 12-16-2016, 09:56 PM
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Nothing wrong with the pcm. You can't use the jumper method to check for trouble codes on a 93 3.4L V6. That only works for the 93 LT1 5.7L V8. If you jumper pins A and B, you put the pcm into what's called Field Service Mode which turns on the fans and several other devices. You must use a scanner like the Tech 1, or the CP9185 with the CP9127 cable adapter. Amazon has a good price ($65) for the CP9185 right now. The CP9127 is about $30.
 
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Old 12-17-2016, 06:30 AM
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Originally Posted by jd93
I've only tested the # 1injector and its getting a good signal, flashing a test light while cranking, compression is good, found a loos ground no change, the problem with the ecm not flashing the ck engine lite when A&B are jumped, is the ecm bad?
The whole reason for injector noid lights is because test lights draw too much power and will fry the injector driver.
 

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