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arkansasduck
September 23rd, 2006, 16:25
89xj 4.0

if the CTS was bad would this cause intermittin power loss to the motor?
arkansasduck
September 23rd, 2006, 16:30
89xj 4.0
would a bad CTS cause intermitten power loss to the motor?
5-90
September 23rd, 2006, 17:31
No, but a CPS problem could! The CTS is used for fuel trim adjustment, but I've tried running the engine without the thing, and all I lost was fuel efficiency.

Since you say the problem is intermittent, check your CPS wiring - it's the three-pole Delphi Weatherpack at the rear of the fuel rail - and if you look between the firewall and the driver's side of the engine (looking down,) you should be able to see the sensor itself. I've had problems where the wiring rested against the exhaust manifold and melted through - and the wiring would short through on the manifold when it touched, and work fine when it got off. Took me a while to find - but it was an otherwise fairly new CPS, and I just repaired the wiring and tacked it out of the way...

5-90
lawsoncl
September 23rd, 2006, 17:56
Possibly. Usually not an intermittent problem though. Get a meter and check the resistance when hot and cold, compare to values in the FSM.
XJING
September 24th, 2006, 03:15
There was a guy a few posts down who went through alot to find a bad
CTS
http://www.naxja.org/forum/showthread.php?t=96937
Maybe you didn't see his post.