nitrodann

It needs to be above what your cranking, when the car fires it jumps up maybe a hundred rpm for a split second on just a single kick, this tell MS that its kicked and starts tapering off the cranking fuel enrichment etc. So it needs to be say, 50 rpm higher than the actual cranking rpm, otherwise it will put in the amount of fuel to run, not start.

Dann

astroboy

iTrader: (18)

I am pretty sure that is how it is set up but I'll double check.

Braineack

iTrader: (62)

you're seeing RPMS in tunerstudio, and getting fuel and spark in the engine?

can't look at MSQ right now, but yes, cranking RPM should be around 350-400.

astroboy

iTrader: (18)

Yup, yup, and yup. From what I remember my cranking rpm's were ~250rpms which then dropped to ~150rpms. Maybe weak battery is making ***** spark that gets blown out by fuel?

Braineack

iTrader: (62)

Make sure the throttle calibration is not getting you into flood clear mode. in fact, you may want to unplug the tps connector while you figure it out. You may be able to lock the injectors wide open if not hooked up properly.

and stock injectors? what's your req_fuel number?

92Miata

iTrader: (3)

For the third time, spray some starter fluid in the throttle body and see if she comes to life. That will confirm or eliminate a fueling issue.

Braineack

iTrader: (62)

who does that?

astroboy

iTrader: (18)

I was attempting to start it with the tps unplugged for a bit, I set it to mapdot till I can locate the problem with the tps.

The injectors are ID1000's, don't recall required fuel.

astroboy

iTrader: (18)

I really just want to figure out the problem and fix it seeing how the engine hasn't been started. Seeing how the fuel pressure gauge on the fpr is showing 0psi I think after timing that is the most logical place to look. I do appreciate the offering of advice though.

92Miata

iTrader: (3)

A motor takes 3 things to run, spark, air, and fuel, correct ?

So if he has air, and spark, but he's not sure he's getting fuel then the simplest way to see if fuel is the issue is to add fuel.

If he sprays starter fluid in and it runs then he knows he needs to trouble shoot the fuel system it's much quicker then troubleshooting to find out the fuel system is working right and he has some other issue.

Braineack

iTrader: (62)

you need a req_fuel value of like 2.0ms. I'm betting you're flooding the motor if you didn't account for that.

astroboy

iTrader: (18)

Hmmmmmmm, I thought I saw a value of 3.6 but I also don't have mt/ts so I can't verify that.

92Miata

iTrader: (3)

Yea yours is 3.5 or 3.6, I would still expect some kind of sputter from it before it completely flooded ?

You stated before that you didn't trust that fuel gauge so I ignored that factor. If you trust it you need to start looking for why and the fuel pump asembly is a good start.

92Miata

iTrader: (3)

Wait your running a 99 motor and all 99 sensors in a 90-97 chassis ?

The wiring for the 99 sensors is a lot diffrent, I had to re wire for the coolant sensor and ended up just running new wires for the tps.

I'm running a 99 motor in a 94 chassis on ms2 with 94 coils and cas. 99 temp sensor(3 wire vs 94 2 wire) 99 tps, 99 injectors and harness.

curly

iTrader: (25)

Do your coolant, MAP, and MAT readings look logical for a cold engine?

astroboy

iTrader: (18)

When I get home I am going to make a small system loop that goes: pump/tank-fpr-verified pressure gauge-tank. I really don't want to dick around with the fpr in the bay because there is so little room to work in there.

I rewired for the 99 tps and iacv, still using both '90 cts, and the 90 injector harness with the ID1000's (with the plug adapters from 949). Also running cops.

astroboy

iTrader: (18)

Yes they do. Last nite they were approximately 76° Wait, there should be a temp associated with MAP?

curly

iTrader: (25)

air temp, coolant temp, and manifold pressure.

astroboy

iTrader: (18)

Well the air and coolant temps looked correct and the manifold pressure didn't do anything special as far as I remember.

curly

iTrader: (25)

Blow on the MAP signal line, see if it changes. I'm pulling easy ideas out of my *** at this point, not sure if you've tried it.