Lt1 injectors fire in pairs or sequential?
Lt1 injectors fire in pairs or sequential?
I noticed yesterday that the injector pigtail previously on injector #3, was
now on injector #1 (likely done when the heads/cam were installed). The only
reason I knew that was that I had blue electrical tape on in that pigtail.
The car doesn't seem to run any different when I change it, but I was
curious to know if they do in fact fire in pairs. (I'd assume the plugs fire
the same way)
Also, are those things suposed to be labeled somehow?
I didn't see anything identifying one VS the other.
- James
now on injector #1 (likely done when the heads/cam were installed). The only
reason I knew that was that I had blue electrical tape on in that pigtail.
The car doesn't seem to run any different when I change it, but I was
curious to know if they do in fact fire in pairs. (I'd assume the plugs fire
the same way)
Also, are those things suposed to be labeled somehow?
I didn't see anything identifying one VS the other.
- James
Re: Lt1 injectors fire in pairs or sequential?
Originally Posted by TraceZ
In 93, they were batch fire. one bank at a time. right or left.
in 94 they went to sequential.
in 94 they went to sequential.

Mixed up injector leads, not bad.
Mixed up spark plug wires, bad.
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