Just recently, an issue with the accelerator has come up after start-up.
It will take 2 to 3 minutes before I get any pedal response after ignition even when the trans is placed into gear.
My first guess is that the ECM is taking a bit to run its checks.
Has anyone ever run across this issue with the '97 VDP XJ6?

 

A moderator should probably move this into the X308 section.

 

X300

 

Why?

 

Hi CBSmith,

I have moved your thread from the forum for the X350 to the forum for the X300, which is the Jaguar factory project code for your 1997 XJ6. Here you will find knowledgeable owners of similar cars.

Regarding your symptoms, the accelerator pedal is directly connected to the Throttle Body (TB) by a standard cable, so it seems very odd that you would have no change in engine response when depressing the pedal. The first possibility that comes to mind is a problem with the Throttle Position Sensor (TPS), a potentiometer attached to the butterfly valve shaft in the TB. As the valve moves, the voltage returned by the TPS varies, and from this signal the ECM determines the position of the valve and its rate of change in opening or closing.

A few questions come to mind:

1. Does the accelerator pedal feel stiff and difficult to move when you're experiencing the problem?

2. Have you scanned the car for any stored OBDII fault codes?

3. When you start the engine, is it settling into a normal idle quickly, or is the idle speed high?

Hopefully others will have some helpful ideas.

Cheers,

Don

 

Breather Mod has been NLA for a long time but clean the throttle!!!!!!!!!!!

bob

 

Bingo, Bob. Looks like you nailed another one!

Thanks,

Don

 

I have the same intermittent issue, and as described is most common in the cold or after the car has sat for a while.

I've got to clean my TB this weekend.

.

 

Thanks everyone...I will clean the TB this weekend and get back with the results.