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Reduced engine power 2 codes

D

davidadams

New member
On my way to work today all of the sudden on my 2004 Pontiac grand prix I get reduced engine check tcs the car will idle but I press the gas nothing just revs a little and bogs down at like 1500 rpm's threw codes p1518 - throttle actuator control module and p0102- mass air flow or map so not sure I have recently cleaned the tb and mass air sensor checked and cleaned ground wires not sure where do go from here any help is greatly appreciated

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Don't have a scan but I tried disconnecting the battery for a few minutes and that didn't work so its been sitting for like an hour. Or so now gonna go back out and see what happens

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So I've reset the system had the battery unplugged over an hour to clear the codes of it did clear them they came right back so I'm hoping the pedal sensor is the problem but won't know for awhile just gonna go back to driving my 02 bonnie ssei for now

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Well put in a new/used but good pedal sensor and same issue so does that mean I need a new throttle body?

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http://engine-codes.com/p1518_buick.html

Possible causes
- Dead or weak battery
- Faulty Throttle Actuator Control (TAC) module
- Throttle Actuator Control (TAC) module harness is ope or shorted
- Throttle Actuator Control (TAC) module circuit poor electrical connection
- Check Throttle Actuator Control (TAC) module connector for water
this part is on the TB check the wires to it, they bake in the exhaust heat.

Read more: http://engine-codes.com/p1518_buick.html#ixzz2tQjtqDND
 
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