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Only 2 injectors working????

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jimmybay Commited Dubber

52 posts · joined Nov 2011 ·

#904253
My 71 fasty has been sitting for about 8 months I put some fresh fuel I her and she fired up but only on one side. Won't idle I put a brick on the pedel to keep the revs up a bit and pulled the injector plugs off the left side 1/3 I think and the revs didn't change. I then pulled the leads off the top of the dizzy for those pots and if I hold the lead contact about 1/2 an inch from the dizzy cap( so I can see the spark the revs go up)but when I plug it in the revs go down. It's got me stuffed what would cause this?? I checked the rotor button there is a small scratch on the contact but nothing major. I read that the dizzy fires two injectors at a time how do I check this??
If the revs go up when the lead is 1/2 inch from the dizzy cap contact I figure it's getting spark but not getting power to the injectors. Thanks In advance
Didyoubringdemgumnutsin?

Lucky Phil Wolfsburg Wizard

480 posts · joined Aug 2010 ·

#904321
Opening a gap on the leads increases the voltage of the spark, making it jump a gap it otherwise wouldn't.
The first thing I would do is fit new sparkplugs.

jimmybay Commited Dubber

52 posts · joined Nov 2011 ·

#904323
Will tomorrow cheers mate
Didyoubringdemgumnutsin?

vlad01 Compulsive Aussie Vee Dubber

4,270 posts · joined Jun 2010 ·

#904388
they could well be jammed from the old fuel varnishing. I have had it happen to 2 cars before. Also check the injector grounds. also the trigger contacts maybe playing up only triggering one bank.

71 notchback,
Past owner of, 70 NB, 73 SB and 72 FB TLE