Trevor Thompson
New Member
I have been having trouble sterting a 1998 P38 with a Deisel engine. Had to reset the Becm memory with the engine code last week. Seemed to lose it when cranking with a low battery. It started reluctantly.
I replaced the heater plugs over the weekend (only 2 were doing anything) and started it to make sure everything was OK. Started on the first turn with a charged battery, and ran it for half an hour.
Went out today to use it and it would not start. Cranking OK - just not firing. So after a change of plans I put the faultmate onto it expecting to have to reset the code again only to find I cant communicate with the engine ecu. I can get into the BECM, and the air con computers OK, but each time I try the engine ECU I get the message that it cant get a responce from the ecu - "try checking the connections and is there actually an ECU there etc".
I have checked the engine ECU fuses, and the connectors on the ecu, and at the engine (near the infection pump. Makes no difference.
The only other thing to mention is that it has a tuning chip fitted which goes between the pump and the ecu.
Does this look like a replacement ECU - or have I missed something obvious?
Trevor
I replaced the heater plugs over the weekend (only 2 were doing anything) and started it to make sure everything was OK. Started on the first turn with a charged battery, and ran it for half an hour.
Went out today to use it and it would not start. Cranking OK - just not firing. So after a change of plans I put the faultmate onto it expecting to have to reset the code again only to find I cant communicate with the engine ecu. I can get into the BECM, and the air con computers OK, but each time I try the engine ECU I get the message that it cant get a responce from the ecu - "try checking the connections and is there actually an ECU there etc".
I have checked the engine ECU fuses, and the connectors on the ecu, and at the engine (near the infection pump. Makes no difference.
The only other thing to mention is that it has a tuning chip fitted which goes between the pump and the ecu.
Does this look like a replacement ECU - or have I missed something obvious?
Trevor