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Discussion Starter #1
i know the codes say injector circuit open, but what does that mean? also code p1261 come up it is manufacturer fuel metering. thanks for any help
 

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Please fill out your signature-- [top "User CP'] We don't know what you drive-!

There are several problems with each series engine-- We can help!

4.5/05 [LLY] had injector connector problems-- a quick stab with a sharp ice pick would make it like new. Free!
 

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Someone will chime in here-- lots of guys have LB7 engines.

Have you had a recent injector work-? a loose connector or a shorted injector wire will cause problems.

Good Luck :)
 

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Discussion Starter #5
yea just replaced the injectors a week ago and been having problems ever sence. first it was air in the system and found a pin hole in the fuel line fixed that, then found a pinched o-ring on one of the injectors. when we got it back together it idled real smooth but going down the road the motor was just noisier than before. tonight i unplugged the programmer(banks 6 gun) and drove it. seem to run and shift smoother but the more i drove it the noisier it got(or atleast it seems that way). well on the way home i put it to the floor and it ran up and didn't shift for a few seconds and the went into limp mode with the service engine soon light on. check the codes and that is what come up. when i pulled up to the house it sounded like it was only running on about 4 cylinders. my question is could it be the connections still? thanks
 

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On the LLY engine-- when a injector looses contact, it will go into "Limp" and and set codes. Just like you have-- The Power control module will sense the problem and include all injectors in group A, or group B, what ever the bad injector is on. It will be on 4 cylinders -- runs-- although not very well, and noisy. The RPM will be limited to 2,000 RPM.

Your problem might be a loose connection, or a bad injector. It will have to go back to the shop that did the injectors. A injector balance test may locate the problem.

Good Luck.
 
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