80 Series Crank No Start

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Joined
Feb 20, 2006
Threads
5
Messages
22
Location
Buffalo
Hi guys,
Posting here cause im perplexed. Owned several 40's, 60's and now an 80 series. Purchased a year ago with 234,xxx, just rolled 264,xxx no issues til last week. She was running a little rough figured had to do tune up, went to jobsite and she died, crank no start.

Pulled rear seats, tested voltage at fuel pump 5v. Pulled original fuel pump, changed, tested 12v, return line flow back no issues; crank no start.

Did denso cap rotor plugs gapped; crank no start.

Checked efi relay; have check engine light crank no start. (Even swapped as well)

Changed fuel filter (again) crank no start

Changed circuit opening relay; crank no start

Timing has not been adjusted, marked and advanced wanted to fire; crank no start. Retarded, crank no start. Set back to mark.

Tested all continuity to manual. Pinned out maf for ohm resistance, all by the book.

Been wrenching on cruisers for over 30 years. This one has really got me.

1. Yes fusible link is good (have amp light on start up)
2. New (car quest premium) fuel pump is in and pumping to pressure (original works as well just louder)
3. Truck is NOT desmogged all original minus desert 4core rad

Ive been working on fj's for over 30 years and this one is leaving me defeated.

Any help? Am i missing something?

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