What would cause a code of p171 and p174 , which is bank 1&2 running too lean .
1999 Chevrolet Silverado 1500

What would cause a code of p171 and p174 , which is bank 1&2 running too lean .

(1999 Chevrolet Silverado 1500)
1 answer & 0 comments
Popular Answer
on November 15, 2014
This applies to both codes... Also note any applicable service bulletin's:
http://engine-codes.com/p0171_chevrolet.html

**Now you should see why guessing at it does not help!!**
Sign in to reply
General Diagnosis
$88 - $111 Learn More
on November 15, 2014
This applies to both codes... Also note any applicable service bulletin's:
http://engine-codes.com/p0171_chevrolet.html

**Now you should see why guessing at it does not help!!**
Sign in to reply

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
Can,t find block heater cord anywhere
When this happens my 4 wheel drive light comes on and it disconnects my cruise control