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Discussion Starter #1
Having an issue with the car that just started a couple weeks ago. Pulls hard in 1st and 2nd but when in 3rd it looses power. One thing that sticks out in the sct livelink logs are the maf ad counts go from 960 in 1st and 2nd to 790 in 3rd. Everything else looks fine until the maf reading drop and then it goes lean.

What could be causing this issue, could the maf need replaced or a bad wire or loose connection?
 

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Discussion Starter #2
Anyone know how to tell if your maf is bad? The fuel rail pressure is droping to almost-0- psi sometimes and I have plenty of pump.
 

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Always start by checking the wiring to the meter first, but with 960 AD you are close to pegging this meter anyways. what meter are you using currently? stock.

The lack of power is because it is going lean, be careful with this.. Send me a log I can
take a look for you. If rail pressure is dropping this amount we likely have a mechanical issue.
 
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