Overfueling ideas please

[RWD_cossie_wil]

Actually, I have just had an idea on this. ... My mates saff went to MSD last year, and Stu was having exactly the same problem, high c.o and couldn't get it down.

On the L8 there is a large ballast "pull down" resistor, and if this is burnt out it allows the car to over-fuel all the time. Don't think it is a fixable problem as I think the part is unavailable, but the easy way to check is bang another L8 in and see what happens. The car runs perfectly apart from high CO, so it might well be that.

Give MSD a ring and see if they can test that L8 for you.

Also replied on your other thread just incase you missed it,

Hi Franco,
Up to you mate, I have a L8 with the wasted spark, or a P8 super 8 with the 8 injector board in, and a set of greens. If the 4x4 saff tps is the same as the escort one then I have one of those as well if you need it. Can have the p8 and greens as long as you need them, the L8 and tps I could lend you for a couple of weeks . Welcome to drop up to brum the weekend, or I can meet you down the M40 or M4, let me know

What actually is the problem you are having?

[RWD_cossie_wil]

Ok, been doing a bit of a thinkback to this prob my mate had.

The problem was the air charge temp circuit in the ECU. Stu found it was constantly showing as -18°C, so was chucking loads of fuel in as it thought it was in Iceland

Stick it on the C.O machine, and unplug the ACT (brown) sensor, see if anything changes when the car is up to normal temp.

Not sure, does the pectel pick up ACT?

[F12NCO]

Yeah it does Will, might see If I can get one as I cant be sure of the quality of mine. That said its been fooking cold the past week or so, and hasn't seemed out of sorts on the monitor readout...........

[F12NCO]

Actually, I have just had an idea on this. ... My mates saff went to MSD last year, and Stu was having exactly the same problem, high c.o and couldn't get it down.

On the L8 there is a large ballast "pull down" resistor, and if this is burnt out it allows the car to over-fuel all the time. Don't think it is a fixable problem as I think the part is unavailable, but the easy way to check is bang another L8 in and see what happens. The car runs perfectly apart from high CO, so it might well be that.

Give MSD a ring and see if they can test that L8 for you.

Joy, so now I could potentially have a scrap ECU Will be having a word with Shorty then as It was bought from him and hadnt been tested until my car was finished.