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Posted by: buck toenges May 14 2007, 11:50 AM

'72 1.7 new rebuilt injectors. Can't get them to fire. Funny thing is that they are both on the passenger side of engine. Bad grounds from the fuel injection harness? I think the trigger points in the distributor fire the injectors on the cylinders catacorner to each other don't they?
What to do? What to check?
Thanks,
Buck

Posted by: tdgray May 14 2007, 12:42 PM

Check your trigger points... sounds like a bad set.

IIRC TP's fire each side.

Also... check your harness connections and the TPS.

Posted by: Bleyseng May 14 2007, 12:50 PM

check the grounding block

Posted by: rmital May 14 2007, 12:50 PM

injectors on one side out = bad grounds

injectors (1&4) or (2&3) out = bad trigger points

Posted by: Dr Evil May 14 2007, 01:04 PM

Look at Ray with the knowledge (Except 1&3, 2&4)

Posted by: tdgray May 14 2007, 01:20 PM

Thanks for correcting me boys... obviously I did not recall correctly.

Posted by: Cap'n Krusty May 14 2007, 03:09 PM

Pardon me, but you're WRONG. The trigger points fire 1/3 and 2/4, which are pairs of injectors on OPPOSITE sides of the engine. The TPS has no bearing on the question. The most likely culprit here is the ground connections under the intake plenum.
The Cap'n

Posted by: Dr Evil May 14 2007, 03:11 PM

Wow, polite AND answered the question that no one had answered yet

Posted by: rmital May 14 2007, 03:53 PM

oops....I'm getting closer.