E
Ed Gasket
Here are the symptoms:
When the clutch is depressed, revs surge to 1500 rpm and then drop
back to around 1000 to 1200 rpm.
With the engine hot and idling the revs vary between 1000 and 1200
rpm over a 3 second period i.e. in 3 secs, revs go from 1000 to 1200
then in the next 3 seconds they fall back to 1000 again.
I have checked the following :-
1) there is slack in the throttle cable
2) The throttle - stop screw just touches the plate; if I turn it out
any further then it is the throttle flap that stops the throttle
mechanism rather than this screw. According to my information, this is
now adjusted as it should be.
3) Resistance measured on the TPS (throttle position sensor), 990 ohms
to 3000 ohms in smooth progression. The manual says the range should
be 700 ohms to 3000 ohms but I dont know if this slight difference is
the problem. I'd have thought the only problem you'd get with a TPS is
it not making contact at all due to wear; hard to see how resistance
at the low end could increase unless its not going back far enough.
I do not have an idle switch on this car.
Has anyone had these symptoms and found out what the answer is?
When the clutch is depressed, revs surge to 1500 rpm and then drop
back to around 1000 to 1200 rpm.
With the engine hot and idling the revs vary between 1000 and 1200
rpm over a 3 second period i.e. in 3 secs, revs go from 1000 to 1200
then in the next 3 seconds they fall back to 1000 again.
I have checked the following :-
1) there is slack in the throttle cable
2) The throttle - stop screw just touches the plate; if I turn it out
any further then it is the throttle flap that stops the throttle
mechanism rather than this screw. According to my information, this is
now adjusted as it should be.
3) Resistance measured on the TPS (throttle position sensor), 990 ohms
to 3000 ohms in smooth progression. The manual says the range should
be 700 ohms to 3000 ohms but I dont know if this slight difference is
the problem. I'd have thought the only problem you'd get with a TPS is
it not making contact at all due to wear; hard to see how resistance
at the low end could increase unless its not going back far enough.
I do not have an idle switch on this car.
Has anyone had these symptoms and found out what the answer is?