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Problems/Service/RepairsIf you have a problem with your HHR, want a tip on repairing or performing a particular service to you HHR here is the place to post!
HELP! I have a 2006 2.4l . My cel and t/c lights are on and I'm getting p0102 and p0053 codes.The trans is shifting hard. I have taken my weapon r cold air intake off and put the factory air box back on. I also cleaned the throttle body. The maf sensor is only 3 months old and is GM. I have cleared the codes and disconnected the neg cable for 30 mins.After I starting it ran for 10 mins then the lights came back on and same codes. What should I do next? Is there anything else i can do in my garage before i take it to the dealership?
Ok,I just checked fuse #33.the fuse is good,not blown.
While putting the air box on today I did check the upstream o2 to make sure it was plugged in and all is good,no wires on exhaust
Don't know if it matters but I am running a header and Walker exhaust. I also have a slight tune,nothing big just turned for premium gas,rev limiter increased,speed limiter increased,trans shift points increased by +400rpm..
Last edited by Oldblue; 10-24-2018 at 05:53 PM.
Reason: Housekeeping
Then you have a bad O2 sensor or a short on the circuit. Tune would have no effect on the heater circuit; could have an effect on hard shifting.
Did this start after something was done?
You could check the resistance on the MAF and the O2 sensor heater.
I think that would be C & D on the O2 sensor and C & D on the MAF. These are the connector pin outs. Both circuits are heaters, so should have high resistance.
That sounds like I guessed wrong at the terminals to use.
But, checking for ignition voltage would tell if it's getting any. Remember those pinouts are connector end views, the component side would be opposite.
The only thing left is the pins on the ECM connector or the signal wires on a sharp or hot surface.
Both codes are related to sensing amperes used in a heating element. The O2 sensor heater tells the ECM that it is working by it's draw. The MAF works by measuring how much current it takes to keep a constant temp on a coil. (some of the terminology may be inaccurate)
So. I am mystified how there could be power and resistance and still a code. The only connection between them is the power source.
Donbrew,I'll check the amperage and Hertz tomorrow and post what I find. Thanks for your help and info. Since all seems to be checking ok and i still have lights on and coded I guess a trip to the dealership is in my future..
10-22-2018, 09:46 PM
