1987 xj6 no injector pulse

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Dec 24, 2020 | 08:05 AM

#21

jsimons

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Joined: Dec 2020

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From: WV

Quote:

Originally Posted by jaguar jon02

got it up and going, power kept dropping out , bump sw kept triping out and resetting ever time i closed door, bypassed and up and ready thanks doug for your help

I have been following the thread as I am having similar problems with my 1985 XJ6. I will be checking relays this weekend because I am not sure were Im losing power. I know that I dont have injector pulse, nor do I have power down on the silver box. What did you mean by bump sw kept tripping?

Dec 24, 2020 | 08:31 AM

#22

Doug

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Joined: Mar 2008

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From: Pacific Northwest USA

"Bump switch" = inertia switch. Or so I presume. Sometimes called a crash switch. It is triggered when the car suffers xxx-force impact.

Cheers
DD

Dec 25, 2020 | 06:24 AM

#23

Fraser Mitchell

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Joined: Dec 2009

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From: Crewe, England

Unless the link from the coil to the L-Jetronic ECU is present and correct, the ECU will not generate a pulse to the injectors. I think it is a white wire, but it's a long time since I owned my Series 3.
Fuel injection and the Jaguar XJ6 4.2 Series 3 / AJ6 Engineering