Diag Help

[Hdracz]

2006 Mazda Miata. Automatic. 120,000 miles. Transmission serviced. Jolting when at a complete stop. Jolts in drive, neutral, and park when at a stop. Goes away after turning car off. Gets worse with ac off or doesn’t affect it. Mass air flow sensor was dirty. Cleaned mass air flow sensor and it got better but came back. Replaced mass air flow sensor but it still came back. Cleaned electric throttle body. Checked spark plugs, all are good. Rpms move slightly. Happens when car is warmed up. Happens randomly, will jolt one day and won’t the next. While driving, car is driving in low rpms. I did not do a relearn after changing mass air flow sensor. It has been two weeks since I changed the mass air flow sensor and engine light has come on. Codes are P0113, P0102, P0103, and P2187. SHRTFT1 (%) is 26.6 and LONGFT1 (%) is 20.3. Been trying to figure out the issue for over a month and half. Any suggestions or ideas?

 

[Crazycanadian]

P0113, P0102, P0103.. These codes suggest either an air leak causing the MAF to read wrong, MAF sensor problem it's self, Wiring or ECU issue.. P2187. SHRTFT1 (%) is 26.6 and LONGFT1 (%) is 20.3 It this is at idle, but gets better under load Its a Vacuum leak. Otherwise it's a sign that there's an issue with the MAF, Air leak or something causing the MAF to read incorrectly.

At this point, take it somewhere to have it diagnosed rather then throwing parts at it.

Automatic transmissions need proper load calculations in order to operate correctly, You're MAF problems are screwing this up. Don't keep driving the car with this problem. You will wreck the transmission. Get the car to a shop to proper diag..

 

[Easter Bunny]

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