mattbm2001

I bought my 1999 Z28 with the six speed in the first week of march. It's been a great car, runs excellent, well until tonight/this morning. Yesterday I drove from San Bernardino CA to Yucca Valley CA, the car ran excellent. I got home last night, drove it to the store, came back, all was well. I go to drive to a near by city, start the car, by the time I reach the end of my street it's surging. I continue driving for a block, now when I put the clutch in and let it return to idle the RPM drops to 300, bounces back up to about 800, and fluctuates between.

I turn around and bring the car straight back. I use a different car to make my run to walmart. I purchased some carb cleaner to check for vacuum leaks, didn't find any. I start the car again, and it's running fine, I drive it around the block and I get a check engine light. I bring the car back home and hook up the scanner. I get the code p1071. I didn't find a vacuum leak, so the scanner told me MAF was likely to blame. What should I use to clean it to attempt a solution? Where should I start in determining the problem?

garygnu

mite be a bad PCV hose,they tend to get brittle or rote.

poltergeist 02

iTrader: (65)

go to the parts store and pick up some electrical parts cleaner. actualy before you do that pull your air lid off and inspect your maf to see if it even needs to be cleaned.

mhorn0817

they have specific MAF cleaner, be sure not to over do it, but its only like 6 bucks so its a cheap place to start

WS SIK6

iTrader: (1)

You might want to check your spark plug wires, they might not be hooked up properly to your coil packs, make sure they snap into place properly...u have to apply a good amount of pressure to snap em into the coil packs properly and u also might want to check if the spark plug wires are hooked up properly to the actual spark plugs ive had this problem before and thats what what causing it

ds98formula

iTrader: (3)

Def clean the MAF also try unplugging the MAF and see how it acts with out it it should go I to default mode and then you can see if it really is the MAF

rabbit320

iTrader: (11)

id also check your O2 sensors... and google that code - should give you answer right there

mattbm2001

Sorry for the late reply. I found and fixed the problem. Apparently the... Well smart guy for lack of a better term, who previously owned the car took the lid apart and couldn't figure out how to snap it back together. He taped it together on the inside with electrical tape. The tape let go and was blocking a good third to half of the screen right before the maf. Removed the tape, problem gone.

ds98formula

iTrader: (3)

Well glade you figured it out. By the way got anything done to your car?

HVYMTL

I was gonna say plug wires also, as I had one disconneted once (don't ask why or how...don't wanna talk about it hahaha) and it did the exact same thing. Glad to hear you fixed it and it was something simple.

smg267

iTrader: (23)

Good thing he didn't descreen the MAF!!!