I have 1997 XK8 - 98K -VIN 005348. Vehicle has some form of temperature dependant stalling issue.From stone cold start at cool temp. (i.e.in early AM) car starts immediately and runs smooth & normal 2-3 minutes. Thereafter, idle becomes rough, poor eng. perf. / engine fault displays, followed by stall about 30 sec. later. Only code set after stall is P1367 i.e. Ign. Control Mod. Car will restart at very rough idle, but stall almost immediately. After subsequent stall, P1368 & misfire codes, P0351, P0352, etc. are set.When cold start attempt is made at higher air temps. (i.e. in late PM after car has been sitting in sun) car will only start to rough idle and stall within 30 sec. Again only code set following initial stall is 1367. Restart attempts again produce P1368 & P0351-7, etc.I also note cruise contol issue. Light on console switch blinks on /off randomly. Operating switch has no effect. No effect noted operating steering wheel switches either. No vacum line or wiring issues observed.Initially, replacing ign. coil relay and ign. postitive rely (in engine bay) cured issue for a day or two, but this no longer works. Both ignition control Modules, throttle motor, coil packs/plugs, relays = new. Battery tests OK. No witing issues noted orissues with any connectors. This acts like O2 sensor issue, but none of these codes ever appear. Where else should I look??
Country: United StatesMake: JaguarModel: XK8Year: 1997
Hello and welcome back to justanswer.comAfter the engine stalls does it give you a hard start? Did you try hooking up a meter to the modules and monitor the power wire for each module?
Yes, hard to start. I don't have any scan tool to plug between modules and connector. Is there such a thing?? I'd have to pull connector apart otherwise and jump the terminals...???
Yes, hard to start. How do I hook meter between connector and moldule? Is there scan tool or do I just have to take connector apart..?
Use a digital voltmeter to see if we are losing voltage on the power line. Let me look back through the wiring and get you the pin numbers.
Do I do this with connector attached to module or not? If attached and engine running, how do I test wire without damaging the connector??
Yes do this with everything connected. With a digital meter we need to measure the voltage on pin 10 pink/white wires on both modules and a ground on pin 9 black wire at both modules. We need to use a pin, paper clip or the meter lead to back probe the connector. When the engine stalls we need to see if power is still present to each ignition module.
OK. Will check and advise
Ok sounds good.
I have tried for several days, however there is no way to access terminals on ICM with connector attached. Wires enter connector thru sealed, hard plastic. There is no way to force in a probe without damaging wire or connector. Only route I see is cutting wires, however there is no slack to allow splice later. Safety pin might be forced thru wires, but wires are small 28 gauge. Pin would likely cut wire or short.
Is there some sort of commercial test connector available? Other wise it looks like I may need to bridge ICM /Connector gap with a bunch of individual wires.
There are different probes you can purchase that are thin or have a small point that can pierce the wire for testing.
I'm looking for a very small set of sewing needles right now that are small enough not to destroy wire. Could you confirm wire colors for pin 9 & 10. On my connector pin 10 has purple wire and 9 a green/white wire. There is green/pink wire on pin 6 and no black wire at all
Please double check as pin 10 should be purple/white and pin 9 should be a black wire.