Having problems with your 2003 Chevrolet Tahoe ?

P0171 code rough idle and hear cats making rattling noises. changed pcv vale, cleaned maf sensor... was looking on top of throttle body and found a sensor but dont know what it is... i touched the sensor and it was clicking...Help please !!

Posted / edited by AnonymousUser on : 21-09-2020

Answers :

P0171 is just a code saying that there are codes in the computers memory bank not ness. Stating what the problem is but if you hear rattling cimg from the cats then I would change them their not supposed to make noise if their clogged it give u the kinda problem your having lol the car has to inhale & exhale the same as we do.
Repair Help & Product Troubleshooting for 2003 Chevrolet Tahoe

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