Boxster's hunting at idle when hot
06-08-2006, 10:23 AM
#1
Intermediate
Thread Starter
Boxster's hunting at idle when hot
Hi - I need help with a 2000 Boxster. Recently it has begun hunting at idle only when it is hot. At the track, adding race fuel cured the problem immediately. With todays fuel prices this is an expensive fix. Anybody know what might be going on? The car has 60K, is chipped, with GHL exhaust, cold intake....... If that makes a difference?
06-08-2006, 05:07 PM
#2
Drifting
Join Date: May 2006
Location: Another Ex pat Brit in SoCal
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Did you by any chance use a K&N or other 'oiled' filter when you did the intake mod?
Understand that excess oil from these filters can mess with the MAF and lead to issues...
Understand that excess oil from these filters can mess with the MAF and lead to issues...
06-09-2006, 01:57 AM
#4
Intermediate
Thread Starter
Two years ago we put the K&N in and the engine light went on.... $1500.00 later we had the dealer change the Maf - we were rookies I guess. Now, yes we have the K&N but they are not over oiled and the first ox sensor in line after the air intake is the one that is fouled - just wiping it with a rag and reinstalling it cures the problem.
This problem is something else. Could the lack of backpressure from the exhaust cause this? The exhaust is the newest addition, and the problems started after this.....
This problem is something else. Could the lack of backpressure from the exhaust cause this? The exhaust is the newest addition, and the problems started after this.....
06-09-2006, 01:14 PM
#6
Drifting
Sounds like a dirty butterfly/throttle valve to me. This 2000 Boxster was doing the same thing - hunting. We cleaned it and the problem went away. (You have to open the butterfly to really see all the carbon buildup).
06-09-2006, 01:32 PM
#7
Pro
Join Date: Dec 2002
Location: Long Island,New York(Now in Orlando, FL)
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Sounds like a dirty butterfly/throttle valve to me. This 2000 Boxster was doing the same thing - hunting. We cleaned it and the problem went away. (You have to open the butterfly to really see all the carbon buildup).
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11-01-2006, 12:12 AM
#8
Burning Brakes
I just had the exact same problem on my 2000. It hunted between 500RPM and 1,000RPM and sometimes even cutout. I took the throttle body off and was amazed how much carbon and dirt buildup there was. I cleaned it all up, and now it has a rock steady idle again
