Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
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I will need the rest of the code. There should be 4 numbers, not 3.
ok its Po420
yes when im driving up hill it smells like hot rubber or something burning the code says catalyst efficiency below threshold (bank1) no thats the only issue
do i have to take it in for repair or can i fix on my own? an i can i drive it short distances? like to the store?