misfire @2k rpm fails emissons - Saxperience

Sophia_Bush · 31st July 2011, 15:16

Right car (gti) has slight misfire at 2k rpm making the co on emissons fail on fast idle changed the plugs and coilpack can still hear misfire any other suggestions as to what to look into? was thinking only other thing may be the coolant temp sensor?

CbVtR · 2nd August 2011, 21:22

It could be the throttle position sensor mate, the wiper inside gets knackered after a while at part or no throttle,
They mess about with the fueling and all sorts when they are playing up

lwigmore · 2nd August 2011, 21:26

Quote:

Originally Posted by Sophia_Bush

Right car (gti) has slight misfire at 2k rpm making the co on emissons fail on fast idle changed the plugs and coilpack can still hear misfire any other suggestions as to what to look into? was thinking only other thing may be the coolant temp sensor?

Have exactly the same problem with my VTS at the moment

Would it be the TPS though?

CbVtR · 2nd August 2011, 21:58

It could be mate, try taking it off and testing it with a multimeter

Sophia_Bush · 2nd August 2011, 22:37

tps is fine on mine I ended up changing for a single exit backbox plus cps and it was fine lol