electrical problem

Oct 30, 2004 5 Replies

Hi al.



Today on the way to my Say job, called in at Mcdonalds, all was fine, got to work, turned off with the key and took it out, damn engine still running (77 Celica GT), tried a couple of leads to the coil and some bright spark says disconnect the battery so i did and it cut out. At night i remove one lead to one the coil, the one had cuts out the engine when its running when you release the key after engaging starter (actual problem when i came here months ago).



Got home by reconecting the batt but called in at the supermarket. I pulled in, took off the + lead on the batt BUT the damn engine kept running!!!!!!! i had to remove the coild lead again. How could the engine run with no pos lead to power the coil etc?



I got home and turned off normal........i discconected the + lead incase the fault came back while in the house as i didnt want no power thru the coil to burn it out.



this has me stumped, i dont have a wiring diagram for UK model for 77, only CA in US and then from 79 which was a diff gen.



thanks.


Sounds like Ign barrel problem

Cos U got an Alternator

Sounds like the Ign barrel is faulty.

Andy

Not a good idea to pull battery leads off when running as you will stuff the alternator and aother electronic bits. If there is no power to the coil the engine will stop (unless it is "running on" in which case you need to stall it) So establish whether disconnecting the coil power lead will stop it, if so then find where it is still being supplied with power from, faulty wiring at the starter or ign switch are possibles.

mrcheerful

first off i removed the wire to the coil which stops the car from running when started normally, and twhen it stillr an with this off i was stumped as i tried another wire and kept on running, all i could think of was the bettery pos lead off.

Ig barrel i think i will try first.

ta

It's easy to check if it's the ign switch before going to the bother of changing it.

If you take out the key and the car is still running, disconnect the connector from the back of the ign switch to see if the engine stops. There could be a short somewhere else that has nothing to do with the ign switch.

John

thanks.

try that

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