Code p1229

[wdino73]

Started getting a p1229 #3 INJECTOR OUTPUT CIRCUIT, I put a scope on the injector plug an I'm only getting 53volts, would this mean the FICM is bad????

 

[dmaxfireman]

did you check the harness near the alternator bracket to see if it is chaffed at all?

 

[dmaxfireman]

if it looks good i would swap those ficms since you have an extra sitting there.

 

[wdino73]

Yeah, I checked the harness in said area it looks good, I swapped the ficm an the volts according to the scope where 89-91volts, around 18amps, I'm know getting the #4 output circuit, I'm going to Chevy in the morning an hook it up to a Tech II, I've done all I can do.. Thanks Kyle for your help, I;ll let u know what happens........

 

[dmaxfireman]

alright pal good luck and let us know how it makes out :/