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p1518 issues still please help
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asked
Dec 6, 2018
by
p1518
p1518 throws ive asked about this before but i havent mentioned this yet. when the code throws my scanner says p1518 pcm to tac module data serial circuit. when i click the info button on my scannner it says "p1518 intake manifold air control(IMAC) and then goes on to explain how it operates. i have a 2003 tahoe with a 5.3L vortec. is there such a thing on my tahoe. i know some fords have it but i cant find anything about it on my tahoe. and if it does have it can it cause this code to be thrown and cause the reduced engine power?
Vehicle:
2003 Chevrolet tahoe 5.3L vortec
p1518
chevrolet
reduced
engine
power
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Dec 6, 2018
by
Reynaldo
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P1518 Throttle actuator control module performance
The Chevy Tahoe does not have a IMRC , this is engine is Vortex. When you set a P1518 this code is more of a poor or improper connection with the throttle actuator, There is a dedicated fuse for this listed as ETC / ECM inspect that fuse on the legs any corrosion replace it. The throttle actuator connection make sure there is no moisture or water ingression in that connection and that the locking tabs holds in place. The main cause for this code is the pink wire that goes to the throttle actuator,
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