Diffilipo & 02 sensors - Ford Forums

BAGTHO · 12-12-2005, 04:12

Hi

I have the early series Diffilipo headers & High flow cats.

The car is constanly requires new O2 Sensor's. The symtoms are a rough idle & high fuel consumption. The last set lasted about 2,000 klm. Have tried both
Genuine & aftermarket.
Has anyone has the same problems & what have you done to rectify?

Brett

Paul V · 12-16-2005, 18:41

I have Herrods with Diffilipos back.

Orginally I had probs with the O2 sensors.
have the wiring to the sensors checked. If there is a short in the wiring it will give all the symptons of a dodgy sensor

Regards

Paul

BAGTHO · 12-16-2005, 21:12

Quote:

Originally Posted by Paul V

I have Herrods with Diffilipos back.

Orginally I had probs with the O2 sensors.
have the wiring to the sensors checked. If there is a short in the wiring it will give all the symptons of a dodgy sensor

Regards

Paul

Hi Paul

I will check the wiring.

Did you replace the sensors & have immediate failure or did they last for about a week then show a failure.

After replacement, they car is good for about a week , then we have the low rough idle & high fuel consumption. faults.

Brett

Paul V · 12-18-2005, 13:53

Hi Brett;

I purchased the setup from a dealer, a period of time later (not sure how long) the problems began. Asked folks here, immediately was told a bout O2 sensors. Kept mentioning to the dealer about the sensors.."No they are ok" I was told. It was in three times before they replaced the sensors. No probs since then.

Talking to some folks in the "know" either the sensor is damaged in the removal and replacement, or, the wiring is damaged. In same cases "patch" cables are used and this changes the resistance, hence false input to the computer.
A "tuner" was telling me that when he changes the system, he raises the idle bt 100 rpm, this is supposed to elimainate any other problems. Have spoken to a number who have had him to do this, and there has been no problems for them.

Regards
Paul