I have a 99 Pontiac Firebird V6 I recently clean the battery cables the ground and positive from alternator to battery from block to battery putting back together I accidentally touched the power lead for the alternator to the mass airflow sensor on the throttle body which is also electronic now the car won't start what did I do besides f it up

Dar

• 2007 Answers
• Posted on Jun 15, 2009

SOURCE: 2001 Ford F-250 need location for IAT sensor

In the intake manifold on drivers side by the fuel rail. It's not part of the MAF. Intake air temperature.

SOURCE: The car(pontiac firebird 3800 v6)overheats and

Check to make sure the radiator fan is coming on watch it for ten minute as it runs it should come on if it doesn't replace the fan relay or the fan coolant temp senson located on engine block upper area of engine.

SOURCE: car won,t start sometimes & check engine light

before changing any more parts there are grounds on the engine that need cleaned one on the back of intake manifold then you have to remove battery tray clean up the ground there then clean where the tray bolts up as this aids in chassis grounding remove ground cable from bellhousing before you reassemble install star washers btween cable ends and where they bolt up this will dig into ground surface and cables making a better ground then remove turn signals in front there are two on right side and one on left side cleanup and star washer then there is the ground spots for the ecm inside removr kick panel on right side clean up and star washer if the starter doesnt work after this starter is probably bad but the other codes will probably clear out

SOURCE: misfire in cylinder 3

NO to the MAF Sensor Question, and Spark Plug Wires Or BOOT Will Cause Missfire. As For Mass Air Flow Sensor Easy Check is to Dissconnect it While Engine is Running And If ENGINE SMOOTHES OUT The Sensor is Bad

Michael Kent

• 343 Answers
• Posted on Oct 02, 2010

SOURCE: 99 grand am v6 runs great then dies, driving and

Autos can be frustrating! I call it ghost in the machine...After all that, I would check the pressure at the fuel rail. My mother's Volvo turbo acted similarly and it was because of a worn fuel pump that was regulated electronicly. After 2 Volvo techs spent an hour on it + test drives, they told me that my diagnosis was correct, the fuel pressure at the rail was intermittently eratic and performed normally most of the time. No problems since the replacement 2 yrs ago. Let me know if you make progress and I'll check with my neighbor who has one and drag races as a hobby...MK