T/C light
If P0171 is the ONLY code the possibility is high that the fuel pump is to blame. That is easy to check, with a fuel pressure gage.
There are two options: too much air (vacuum leak?), or not enough fuel (bad pump?).
well just finished up working on HHR, put in new ac/delco plugs, had autolites in it(gag), new air filter(it was filthy),new cabin filter (it also was filthy), also found a small tube ( 3/8-1/2") runs from valve cover to intake(between MAF & throttle body) was split on end & wasn't even hooked up?? hope this cures problems. thanks for all the input.


