Mechanics

CAR WILL NOT ACCELARATE AT ALL

2001 Hyundai XG300 • 50,000 miles

The rpm are at 450 I have all ready replaced the throtel bodt and tbs. I have a reading of.62 on tbs ets and 4.50 on the ecm. I do not know if this is normal or not. Help
Avatar
David421
August 26, 2011.



Have you checked fuel pump pressure?

Yes the pressure was with in specs. It I disconnect the mass air flow sensor it acclerates fine and will idle(it is a liitle fast). I did try a new sensor no luck!

Tiny
David421
Sep 6, 2011.
Yes it is at 40lbs at idle. If I leave the maf sensor disconnected it will idle fine and accelerate fine. The idles high when I do this.

Tiny
David421
Sep 29, 2011.