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ngr5011
08-29-2014, 10:07 PM
2010 335 recently went to accelerate and engine malfunction reduced power came on. Shut car off and on and disappeared. Could not Accellerate. Came to a stop and car started shaking. Read code as PO306. Changed out all plugs and coils and reset throttle adaptation. Still cannot Accellerate and a lot of fuel is being used(185 miles on one tank city). Can anyone advise what else may be the problem or who may have had similar issues. Much appreciated.
Mannyf540
08-30-2014, 03:58 PM
2010 335 recently went to accelerate and engine malfunction reduced power came on. Shut car off and on and disappeared. Could not Accellerate. Came to a stop and car started shaking. Read code as PO306. Changed out all plugs and coils and reset throttle adaptation. Still cannot Accellerate and a lot of fuel is being used(185 miles on one tank city). Can anyone advise what else may be the problem or who may have had similar issues. Much appreciated.

High Pressure Fuel Pump ?
trohde78
08-30-2014, 06:17 PM
I had the same issue. Dealer replaced the HPFP and then the injectors.
Nikojt
08-30-2014, 06:46 PM
I was gonna say injectors... That's indicative of them dumping too much fuel into the combustion chamber. It's less likely the HPFP because there would probably be less gas consumption not more.
beezul
09-02-2014, 06:37 PM
He said less gas, not more.
Critter7r
09-04-2014, 11:31 AM
Actually, he said "lots of fuel", not "less gas".
Nikojt
09-04-2014, 12:39 PM
OP, any updates?
Prometheus135i
09-04-2014, 12:42 PM
[QUOTE="ngr5011;27901921"]2010 335 recently went to accelerate and engine malfunction reduced power came on. Shut car off and on and disappeared. Could not Accellerate. Came to a stop and car started shaking. Read code as PO306. Changed out all plugs and coils and reset throttle adaptation. Still cannot Accellerate and a lot of fuel is being used(185 miles on one tank city). Can anyone advise what else may be the problem or who may have had similar issues. Much appreciated.[/QUOT

It's your HPFP.
Prometheus135i
09-04-2014, 12:43 PM
Same thing happened to me. 100% HPFP.
trohde78
09-04-2014, 04:11 PM
Same thing happened to me. 100% HPFP.

I think injectors may still be a possibility as well.