supra87 Posted May 4, 2009 Share Posted May 4, 2009 supra n/a running very rich and rought idel is up and down on tick over any ideas any one???? Link to comment Share on other sites More sharing options...
RobD Posted May 4, 2009 Share Posted May 4, 2009 Have you checked your wipers? Link to comment Share on other sites More sharing options...
RobD Posted May 4, 2009 Share Posted May 4, 2009 Could be a ht lead gone down, spark plug not working correctly, out of timing etc etc list goes on bud! Link to comment Share on other sites More sharing options...
dcarrter21 Posted May 4, 2009 Share Posted May 4, 2009 o2 sensors Link to comment Share on other sites More sharing options...
Homer Posted May 4, 2009 Share Posted May 4, 2009 Vacuum or intake air leak is most likely. Is it misfiring at all? Any sign of black smoke from the exhaust? Please drop the txt speak, we're normal people here Link to comment Share on other sites More sharing options...
supra87 Posted May 4, 2009 Author Share Posted May 4, 2009 there is black smoke when startin it cold but when it gets hot there is no smoke idel is very low want to stall exhaust fumes very hot straight away dont think its miss firing Link to comment Share on other sites More sharing options...
DodgyRog Posted May 5, 2009 Share Posted May 5, 2009 Please drop the txt speak Link to comment Share on other sites More sharing options...
Guest drlee Posted May 6, 2009 Share Posted May 6, 2009 try unplugging the throttle posision potentiometer? note not text conversation! Link to comment Share on other sites More sharing options...
Guest drlee Posted May 6, 2009 Share Posted May 6, 2009 sounds like catalitic converter shot if u still av it on.cant breathe.regards. d.r Link to comment Share on other sites More sharing options...
Guest proburt Posted May 7, 2009 Share Posted May 7, 2009 Vacuum or intake air leak is most likely +1 clean the air flow meter and check for a vacume leak check the Idle air controll valve as well. Link to comment Share on other sites More sharing options...
Havard Posted May 7, 2009 Share Posted May 7, 2009 Mine has this at the moment. It is currenntly at my local garage being looked at. Idle control valve and air sensor are looking favourite but the Cat issue may be a good question as I only have my first Cat in at the moment..!! The car is running ok when on the move it is just at idle when warm that it has a problem..!! H. Link to comment Share on other sites More sharing options...
TonyP Posted May 7, 2009 Share Posted May 7, 2009 I had this problem a couple of months ago. The garage checked/ replaced all of the above mentioned items. Eventually they came to the conclusion that it wasn't any of the sensors sending false information to the ecu, the sensors were all working perfectly, it was the ecu that was at fault misinterpreting the information being sent to it. Bought a second hand one, swapped it over and it now runs like a dream. Link to comment Share on other sites More sharing options...
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