po200 code on 55 belair
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Teching In
Joined: Nov 2011
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po200 code on 55 belair I have a 55 belair that has a 05 4.8L in it with simens 60lb injectors and running e85 I drove it the other day and noticed it was going lean on cruise. My wideband was showing like 1.27 so I was looking at laptop and noticed that my short terms were not on. So I commanded closed loop and they turned back on and bank one was about normal again like + or - 2 percent and bank 2 was about 20-30 so I knew bank 2 was problem. So I brought it back home and replaced battery since the optima was 9 years old and I had to jump it to even start it that day. So new battery is in and still having the p0200 code. I went thru and commanded each injector off one at a time and 2 did not change anything so I figured that was the problem. So I grabbed stethascope and sure enough I can hear it clicking no problem. I even took a noid light for gm tbi unit and put wires on both ends and touched the wires in the end of the plug and sure enough it flashes. I then let car get all the way to normal temperature and then noticed that clicking number 2 of again does change it. So does it mean I have a flake injector or ecm is bad. I thought about switching to 80lb soon but not sure if that is the problem or do I have a bigger problem. I went back out like 2 hours later last night and everything was working again like normal and injector code was not there which confuses me even more.
