83 240 no start, but tricky.
#1
83 240 no start, but tricky.
Hi first post here! I bought an 83 240 dl 2.3l yesterday in non running condition. The engine turns over, but does not fire. The fuel pumps are new as are the relays. fuses 5,7,13 intact 25A fuse on fender cleaned and intact. The fuel pumps do not operate at the turn of the key but do operate when the relay is bridged. the relays test good. There is fuel at the fuel rail under pressure. The wire harness to ECU is the good replacement harness, nothing appears hacked.
I believe the problem to be electrical and want to begin wire tracing. I have a haynes and chilton manual that came with the car and have ordered the bentley manual online. The manuals I have are not very clear on electric diagrams.
I am looking for help in where to start fault tracing for this issue. I am also looking for an ECU pinout if anyone would share one for an 83. Any help would be much appreciated- thanks.
I believe the problem to be electrical and want to begin wire tracing. I have a haynes and chilton manual that came with the car and have ordered the bentley manual online. The manuals I have are not very clear on electric diagrams.
I am looking for help in where to start fault tracing for this issue. I am also looking for an ECU pinout if anyone would share one for an 83. Any help would be much appreciated- thanks.
#3
there's diagrams for an 81 and 85 240 here, K-Jet.org | 200 Series
it kinda matter which engine/injection system is in the 83, is it K-Jetronic (CIS) or LH (EIS) ? I'm not clear what years they switched, my experience is mostly with LH systems. The 85 is a LH II system, while the 81 is a K-Jet. the differences year to year with the same configuration are almost non-existent.
it kinda matter which engine/injection system is in the 83, is it K-Jetronic (CIS) or LH (EIS) ? I'm not clear what years they switched, my experience is mostly with LH systems. The 85 is a LH II system, while the 81 is a K-Jet. the differences year to year with the same configuration are almost non-existent.
#4
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#6
there's diagrams for an 81 and 85 240 here, K-Jet.org | 200 Series
it kinda matter which engine/injection system is in the 83, is it K-Jetronic (CIS) or LH (EIS) ? I'm not clear what years they switched, my experience is mostly with LH systems. The 85 is a LH II system, while the 81 is a K-Jet. the differences year to year with the same configuration are almost non-existent.
it kinda matter which engine/injection system is in the 83, is it K-Jetronic (CIS) or LH (EIS) ? I'm not clear what years they switched, my experience is mostly with LH systems. The 85 is a LH II system, while the 81 is a K-Jet. the differences year to year with the same configuration are almost non-existent.
The car did run tonight with the fuel relay bridged and AMM disconnected. The system relay buzzed a few times between starting attempts. The idle hunted some, but smoothed out after 10-15 seconds. It ran quiet and smooth overall, stumbling lean sometimes when throttle was depressed. My impression was that combustion was soft, though. I used a shot of ether to initiate starting.
I plan on cleaning up the grounds and electrical connections generally and finding the source of a hissing leak after shutdown. I would like to continue the wire and fault tracing. I will eventually suss out the diagrams but would definitely appreciate some real world input on the issues I have identified.
#7
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Jerry Balch
1998-2000 model year XC70
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02-15-2014 11:51 PM