Close
QUESTIONS

RepairPal is your advocate for car care advice and guidance

Q: map sensor on 1996 GMC 2500 Pickup

Edit
i get code P0171 on the computer due to having a shaky take off, smell of gas, and check engine light on. I cleaned out the map sensor thats on the intake. it kind of solved the problem a bit but it still shakes upon take off. The truck is a 1996 gmc sierra 2500 vortec eng and 170000 miles. Any ideas? Thank you
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
171 is usally a indicator of a vaccuum leak causing the long term trims up. fuel pressure, pcv, mass air flow sensor and intake leaks are common problems. by the way, cleaning the mass air flow works in less than 1% of the time.
the breaking up n accelaration is probably plugs and wires.
take it to a pro and let him tell you what it needs instead of throwing parts at it trying to fix it.

Roy
Didn't find what you were looking for?