Toyfoot

I had to have my Toy towed for the first time ever in 16 years. It was a sad day! History: I have owner my 1988 SR5 truck since 1992. New engine in 2004 with 50,000 on engine now. Everything was running great when I parked it for 30 min and it will not start at all for 6 months now. I have been working on it off and on all summer and need it now that it is almost blizzard time here in the Colorado Rockies. I have checked a lot of things with the FSM without finding anything wrong. I swapped parts off of my 1985 4Runner (Tps, injector resistor, ignition coil and some relays ) I have spark but no fuel from the injectors, I think. I have power to the injectors and I have the ground at the computer but no fuel on the plugs when I pull them after trying to start her. I had the injectors cleaned when I did the engine replacement too. I have jumped fp to B+, I have fuel to the rail and put some heat and more fuel in the tank in case I had some water in the tank. I even tried starting fluid with no luck,it just cranks over with out even trying to start. The timing looks right with a lot of compression. It is just dead! After reading some of the posts I saw that the distributor has caused the injectors not to fire but if that were the problem wouldn’t it give a code after cranking it for a while? I even swapped the ECM with one from a different year that I got off of eBay with no luck! Please help me before have to shoot her! What am I missing?

Toyfoot

Bump: Even a guess from anyone would help at this point.

abecedarian

If you tried starting fluid and it wouldn't start, that implies no spark, which points at the distributor or ignitor or coil.
You've checked for spark by holding a plug wire near the engine?
You've also gone through and checked all the fuses?

ScottyC

iTrader: (1)

AFM is bad. Swap it out.

Does the check engine light come on before starting? If no, then that is a dead giveaway.

Its either that or a fried ignitor.

Toyfoot

I checked for spark by pulling the #1 plug and laid it on top of the valve cover. I have swapped the coil and igniter also I have checked all the fuses too. The CEL does come on when I turn on the key. On my 1985 efi when I unplug the AFM and start it, it starts for a second then dies so I ruled that out. I can swap it to rule that out next. Thanks for any ideas.

ScottyC

iTrader: (1)

Sounds simple, but did you check the EFI fuse under the dash?

Toyfoot

Yep, I replaced the EFI fuse. I had a code 51 when I changed the TPS and didn't have it adjusted right. Now no codes when I check.

abecedarian

so you've got spark...
jumpering the fuel pump doesn't help (which rules out the afm, circuit opening relay)
starting fluid produces no affect...
could be a problem between the ignitor and ECU causing the ECU to not realize the engine is cranking thus no injection signals
but that doesn't explain why starting fluid wouldn't do anything.
when was the last valve adjustment done?

Kiroshu

It has to be air related if you have done all that theres no other thing to check. Check and see all your clamps are tight and no holes in the pipes. Vacum lines connected? stuff jamed in your air filter or hose? It might be your sensor for mass air flow.