DonkRado
NAXJA Forum User
- Location
- Charlottesville, VA
1990 XJ 4.0 Renix.
Ok, the car ran fine when I picked it up in PA and drove it 300+ miles home. Well, it leaked tons of oil, and wouldn't engage the starter at one point... but that's it.
I have since replaced:
valve cover gasket
oil pump (HV Melling now)
front & rear main seals
oil pan gasket
FAI & CCV hose
plugs (went with Champions)
wires
cap
rotor
After I buttoned it all up, it wouldn't even crank. I hammered on the starter and now it at least cranks.
I put a plug on the coil to distrib wire, and it gets a nice consistent blue spark.
I depressed the Schrader valve on the fuel rail and it shoots out a nice stream.
I believe that I set the timing incorrectly when I first primed the oil pump, but I have since reset it at TDC with the rotor on #1.
The cranking sounds good and healthy, though a bit of a strain on the battery after a few revolutions.
So, what sensors would allow me to get spark & fuel, but no ignition?
The new FAI hose is actually located backwards of the old one, so the largest tube off of the valve cover doesn't meet and link up with the one coming from the air box (I only replaced the FAI assembly on valve cover side). When I had someone cranking it last night, I plugged both of those open hoses and it did sound like it was trying to catch moreso than the usual no start cranking. There's also another small diameter hose from the new FAI assembly that I can't even locate where it is supposed to plug in. The old one didn't have a hose there? Doesn't that assembly run over to the MAP sensor? Would that allow spark but no starting? I have already ordered the rest of the FAI set, so that will be in place tonight.
Ideas? I'm thinking that the Crank Position Sensor would create a no spark, right? I've tried starting in Neutral and with it in Park but pushed to the right, but no luck from the NSS switch side of things. Thanks for the help.
Ok, the car ran fine when I picked it up in PA and drove it 300+ miles home. Well, it leaked tons of oil, and wouldn't engage the starter at one point... but that's it.
I have since replaced:
valve cover gasket
oil pump (HV Melling now)
front & rear main seals
oil pan gasket
FAI & CCV hose
plugs (went with Champions)
wires
cap
rotor
After I buttoned it all up, it wouldn't even crank. I hammered on the starter and now it at least cranks.
I put a plug on the coil to distrib wire, and it gets a nice consistent blue spark.
I depressed the Schrader valve on the fuel rail and it shoots out a nice stream.
I believe that I set the timing incorrectly when I first primed the oil pump, but I have since reset it at TDC with the rotor on #1.
The cranking sounds good and healthy, though a bit of a strain on the battery after a few revolutions.
So, what sensors would allow me to get spark & fuel, but no ignition?
The new FAI hose is actually located backwards of the old one, so the largest tube off of the valve cover doesn't meet and link up with the one coming from the air box (I only replaced the FAI assembly on valve cover side). When I had someone cranking it last night, I plugged both of those open hoses and it did sound like it was trying to catch moreso than the usual no start cranking. There's also another small diameter hose from the new FAI assembly that I can't even locate where it is supposed to plug in. The old one didn't have a hose there? Doesn't that assembly run over to the MAP sensor? Would that allow spark but no starting? I have already ordered the rest of the FAI set, so that will be in place tonight.
Ideas? I'm thinking that the Crank Position Sensor would create a no spark, right? I've tried starting in Neutral and with it in Park but pushed to the right, but no luck from the NSS switch side of things. Thanks for the help.