Bad Ignition Wires
#1
Bad Ignition Wires
Hi! I was hoping you could help me. I'm am a junior aviation electrician for the US Navy. My 1997 Jaguar XJ6 (US) has two misfires, and I've determined that the problem is the ignition wires, which are clearly damaged with cracked insulation and exposed conductor, or possibly may also be the Engine Control Unit (ECU) aka engine computer or "brain box." The trouble is, I'm not very experienced in my field, and I have ZERO experience with working on cars, so I have no idea where the ECU is or where the wires go. The ignition wires are part of a larger wire bundle, which disappears into the frame of the car so I can't follow it without taking the car apart. So my question is: where is the ECU in my 1997 Jaguar XJ6 (US) and how do I get to it? Do I have to take out a bunch of other parts to be able to reach it? Or is it somewhere easily accessible that I'm just overlooking? Also, do the ignition wires share a common circuit at any point? In other words, if 4 out of the 6 ignition wires are working properly, does that mean the ECU must also be working properly?
If you can help me fix this problem without going to an expensive shop, it would really help me out a lot. I'm poor. Thanks for your help!
PS) No, the problem isn't the fuel injectors, spark plugs, or ignition coils. The injectors were just cleaned, the spark plugs are brand new, and I switched and the ignition coils to see if the problem would follow and it didn't. The problem did follow, however, when I switch the damaged #1 ignition wire with the properly functioning #3 ignition wire.
If you can help me fix this problem without going to an expensive shop, it would really help me out a lot. I'm poor. Thanks for your help!
PS) No, the problem isn't the fuel injectors, spark plugs, or ignition coils. The injectors were just cleaned, the spark plugs are brand new, and I switched and the ignition coils to see if the problem would follow and it didn't. The problem did follow, however, when I switch the damaged #1 ignition wire with the properly functioning #3 ignition wire.
Last edited by GGG; 09-10-2014 at 06:11 PM.
#2
Welcome to the forum gracehi88,
I've moved your question from General Tech Help to X300 forum. Members here with the same model will be able to help.
Please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some info about yourself and your vehicle for all members to see. In return you'll get a proper welcome and some useful advice about posting to the forum.
Graham
I've moved your question from General Tech Help to X300 forum. Members here with the same model will be able to help.
Please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some info about yourself and your vehicle for all members to see. In return you'll get a proper welcome and some useful advice about posting to the forum.
Graham
#4
#6
Thank you so much for your help.
#7
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