Greetings from down under New Zealand. The car is a 1990 red top 4x4. I have just read the post from capt cotswold but I believe my problem may be more electrical in nature (almost like timing out) so have started a new post. The symptoms started as just an occasional miss when under load going up a hill almost like running out of petrol so I guess the fuel pump wiring mod mentioned would be a good start. Then it progressed to when you started the car from cold it would hardly run hunting and missing, dropping right down as if about to stall then it would sort of knock then pick up again sometimes backfiring. (never actually stalled but it sure seemed like it was going to) Usually it would come right when warmed up a bit. Now as you drive along the car feels like it dies tacho drops to zero then it restarts usually with a large backfire and plenty of smoke out the back. (this may just be that fuel is still going in but not being ignited until the car fires up again.) All I have tried today was to reseat most of the sensor plugs including ECU and did as many static resistance readings of sensors from ECU plug as I could - all seemed within spec. Do I read that the 3 big engine loom plugs at firewall have been known to cause problems. This problem is very intermittant although obviously getting worse but when not happening car seems to run fine seeming to eliminate any hard failed sensors. Any help would be greatly appreciated. Thanks David