Well, my car (92 six speed with 25,000 mi) found out it was for sale and started giving me trouble. Check engine light came on Sunday morning while driving in town at low speed and continued to come on and go off setting a history code 45. Later while on the highway at 50-60 mph. the problem seemed to be clearing itself up the farther I drove it. The light came on much less frequently. The next day I scanned it with an AutoXray 6000 and found the block learn values at 116 to 127 on the right and 108 to 109 on the left. both sides show rich but the left side is worse. I put a bottle of Red Line fuel system cleaner in a full tank of gas and have only driven it about fifty miles or so since. Last night I drove it about 40 minutes on the highway and the light only came on once. I haven't had a chance to further diagnose the problem but I thought I would ask if there is anyone who has experienced this problem ( a code 45) and what was the out come? I hardly drive this car and I think that may be part of the problem. The injectors may be dirty or maybe the fuel stabilizer I added to the tank last fall may be the problem. This is the first time in 12 years that I added stabilizer to the fuel before storing the car. Up to now I haven't had any problems.
Any assistance would be appreciated.
Thanks
Jim

 

I think you probably answered your own question. Run all that old fuel out, change your fuel filter and then floor it a couple times on the highway. Everything may just be fine. Remember to clear the History Code, so it doesn't keep coming-up in the ECM.

Good luck.

 

Thanks for the reply.
The tank of gas that had the stabilizer has been used up and the second tank of the year is now in there with the Redline fuel system cleaner. I'm gonna do a more thorough scan on Saturday. and see what happens.
Thanks
Jim

 

Hello all.
I did an injector leak down test on the Vette today and after 20 min. there was no leak down at all. Then I did a drop test on all of the injectors and they all dropped the same except #5. I couldn't get #5 to fire with the injector tester. I checked the resistance on all of them and got 13.2 Ohms on all but #5. I got 4.1 Ohms on #5. Obviously I have a problem with #5 injector but what I can't figure out yet is why I'm getting a rich code #45 on the left bank when my testing shows I have a problem with one injector NOT firing. Could the lack of resistance in the #5 be causing some sort of electrical glitch with the rest on that bank??? The 92 Vette is a Batch fire system, not sequential.
I'll likely change the #5 but anybody got any ideas???
Thanks
Jim

 

Ok. Since nobody wants to take a shot at the rich lean thing, could anybody recommend a set of quality replacement injectors? A replacement Multec from the dealer is $155.00 my cost, so I think if I can get a real good matched set it may be the way to go..
Thanks
Jim