please someone help

[jayzcycles]

hi my 4.0 97 chim is still playing up.its a intermitant fault that makes the car cut out when slowing for a corner or at a junction.i have changed all the normal stuff ,stepper ,temp sender,plugs, leads but last week it was fine this sunday played up all day.please can someone help before i set light to the thing .ive had this for 4 years now but nobody can find the fault and i have lost any cofidence driving the car.thanks jay

[RumbleBee]

Never had it myself, but some people have reported a similar problem caused by chatter on the immobiliser relay, but this was mainly on pre 96 chims I think, But may still be worth looking into if you have run out of other options.

[jonathant]

I had intermittent cutting out when coming to a stop and intermittent dodgy idle on my '99 Chim. This was eventually traced to corrosion/dirt on the big ECU connector.

edited to add: I had two sources of corrosion/dirt: it seems that water was working into the ECU connector through the bulkhead; and sticky oily goop from degrading insulation tape.

Edited by jonathant on Monday 16th April 12:17

[tvrbob]

jonathant said:

I had intermittent cutting out when coming to a stop and intermittent dodgy idle on my '99 Chim. This was eventually traced to corrosion/dirt on the big ECU connector.

Me too. Just pull the ECU out from the battery box, unclip the socket and check the contacts. The socket comes apart easily if you need to open it. I also found one of the socket terminals was mounted the wrong way round. This allowed the contact to slip backwards into the socket because its spring clip was facing the wrong way.

[dadamsv8]

I've got mine booked into Austec this Friday for the same problem...I explained the symptoms to the guy on the phone who was confident he could fix it while I wait.

I will update all with hopefully good news on Friday