Chattering Relays

[coley1981]

Help Please!!

After missing most of the summer with the Car having the usual followers, cam problems. I finally had the car back two weeks ago and now the things developed an electrical fault. I've got three relays chattering on and off spiradically. I think two of them are the fan relays and one of them is the fuel pump relay. Anyone had this problem before or does anyone konw of where i can get a Wiring Diagram(pages are missing from my manual).

Desperately desperate Tuscan owner.

[basil brush]

My fan relays started chattering when the ECU coolant temp sensor was on it's way out.

[coley1981]

Are the ECU Coolant temperature sensors the ones located on the airbox side of the head? Thinks there's two on either side?

[basil brush]

coley1981 said:

Are the ECU Coolant temperature sensors the ones located on the airbox side of the head? Thinks there's two on either side?

There are 2 coolant sensors on the airbox side of the block. The one near the front is for the gauge, and the back one with the larger plug on it feeds the ECU. It's an easy job and the sensor costs about a tenner.

What temp do your fans kick in at?

[coley1981]

Thats the other problem that i have. The fans are running constantly as soon as you start the engine and the dash is showing EFI fault. I was told that the EFI fault may be caused by either the Air con sensor(chnged already) or one of the temp sensors that we've talked about?? Where did you get the sensor from? Is it a standard (eg ford) or is it a TVR specific.

[kipper_]

Hi there,

The temp sensors can be ordered from

www.tvrgear.com

I replaced mine its a simple enough job and they arrived the next day.

[basil brush]

kipper_ said:

Hi there, The temp sensors can be ordered from www.tvrgear.com I replaced mine its a simple enough job and they arrived the next day.

Same here.

[coley1981]

Cheers guys, really appreciate your help. Will order one tommorow and see how it goes.

Cheers