crank, no start...

[k20z1]

spark and fuel are present at cranking...it doesn't start.

the only way i have figured out to make it start is to unplug all he injectors, crank it, then it begins to fire, quickly plug the inj. back in and it stumbles up to a ~800-900 rpm idle.revs fine, drives fine, everything is fine once it starts...

I'm sooo lost?!?!?

any input is helpful.

[Silvia007]

Sounds like a coolant temp sensor. The one for the ECU, not the one for the gauge. One for the ECU has 2 wires vs 1 for the gauge.

[k20z1]

Sounds like a coolant temp sensor. The one for the ECU, not the one for the gauge. One for the ECU has 2 wires vs 1 for the gauge.

its the one on the intake plenum casting right? on the top radiator hose piping?? sounds like it may be dumping fuel all the time cause it reads full cold?? maybe i dunno.