Mike1331
NAXJA Forum User
- Location
- Folsom, CA
Jeez what a mess. after about 4 weeks of searching and diagnosing i'll post this hoopla.
Pulled jeep into garage because it ran like crap, thought engine was blown, 200K total miles on the 87 with about 60K of pure high revving offroad shenanigans. Put HO motor in with 77K miles (verified) new distributor, fuel pump, cps, o2, plug wires… Go to start and right as it fires up everything under the hood (driver side) burst into flames. Open header + leaky fuel line = poop in pants.
Lets see if I can remember it all,
Wire loom going to c101 is not burnt but when I opened it (c101) up all the connections looked like it had some 10 year old dirty electric grease all over em. Had no electric cleaner handy so I just plugged it back in as the jeep ran before with it.
New optima yellow top with 12.36 volts:
Solder the cps wires that were burnt (the harness side going to computer), no start…
Put old cps back in still no start. The reading is very incosistant. When putting two different ohmmeters set to 200 ohms it gives me all sorts of readings from 34-230 no pattern in readings.
Spark is clean and white
Plugs got a little wet with fuel after a bunch of cranking, although the fuel rail nipple spit out very little fuel. But the jeep ran with the new fuel pump and you can hear it prime.
Just under 4 volts at the camshaft position sensor.
Just under 5 volts at the tps.
Havent tested the coil but I’m getting good spark so…
Starter solenoid next to battery is getting voltage but I forget how much.
App:
87 cherokee with a 99 ho engine and all renix intake and electronics hooked up to it accept for the temp gauge sensor (I haven’t tapped into the thermo housing yet) But the connectors at the temp sensor in the block got very burnt, to the point where I can’t even disco the temp sensor from the wire harness connector. I just left it connected as I don’t think the temp sensor would effect the startability.
The fire was mild and I put it out very quickly aside from the rag that was sitting on my battery that caught on fire so I threw it over my shoulders when everything was flaming up only for it to land on a 32 gallon trash bag filled with empty oil bottles and such. Then I had a giant ball of burning trash in my garage, I of curse had to pick this ball of inferno up with my bare hands to carry it out to the street to keep it from burning my apts down. Aint lifes screw ups grand.
Help please
Pulled jeep into garage because it ran like crap, thought engine was blown, 200K total miles on the 87 with about 60K of pure high revving offroad shenanigans. Put HO motor in with 77K miles (verified) new distributor, fuel pump, cps, o2, plug wires… Go to start and right as it fires up everything under the hood (driver side) burst into flames. Open header + leaky fuel line = poop in pants.
Lets see if I can remember it all,
Wire loom going to c101 is not burnt but when I opened it (c101) up all the connections looked like it had some 10 year old dirty electric grease all over em. Had no electric cleaner handy so I just plugged it back in as the jeep ran before with it.
New optima yellow top with 12.36 volts:
Solder the cps wires that were burnt (the harness side going to computer), no start…
Put old cps back in still no start. The reading is very incosistant. When putting two different ohmmeters set to 200 ohms it gives me all sorts of readings from 34-230 no pattern in readings.
Spark is clean and white
Plugs got a little wet with fuel after a bunch of cranking, although the fuel rail nipple spit out very little fuel. But the jeep ran with the new fuel pump and you can hear it prime.
Just under 4 volts at the camshaft position sensor.
Just under 5 volts at the tps.
Havent tested the coil but I’m getting good spark so…
Starter solenoid next to battery is getting voltage but I forget how much.
App:
87 cherokee with a 99 ho engine and all renix intake and electronics hooked up to it accept for the temp gauge sensor (I haven’t tapped into the thermo housing yet) But the connectors at the temp sensor in the block got very burnt, to the point where I can’t even disco the temp sensor from the wire harness connector. I just left it connected as I don’t think the temp sensor would effect the startability.
The fire was mild and I put it out very quickly aside from the rag that was sitting on my battery that caught on fire so I threw it over my shoulders when everything was flaming up only for it to land on a 32 gallon trash bag filled with empty oil bottles and such. Then I had a giant ball of burning trash in my garage, I of curse had to pick this ball of inferno up with my bare hands to carry it out to the street to keep it from burning my apts down. Aint lifes screw ups grand.
Help please