New ECU, IAC, Coil pack, Fuel Pump, CAS still no start

[Steve '92ES]

Can you hear the fuel pump running when the ignition is on or when cranking?

The fuel pump won't run with just the key to on. It must be cranking (or running, but that doesn't help if it won't start..)
The easiest way to check that the pump is getting turned on is to connect a voltmeter or test light to the fuel pump check wire* by the battery and see if it powers up when you crank. You can also check that the pump works by connecting a jumper wire from that connector to the battery (+) and listening to it.

*The fuel pump check wire is one of 3 single wires tucked in by the battery kind of under the wiper motor. There's a wire with a blue connector (tach signal), one with a tan connector (idle speed set wire) and the one you want, with a black connector.

[3kgt1734]

The fuel pump won't run with just the key to on. It must be cranking (or running, but that doesn't help if it won't start..)
The easiest way to check that the pump is getting turned on is to connect a voltmeter or test light to the fuel pump check wire* by the battery and see if it powers up when you crank. You can also check that the pump works by connecting a jumper wire from that connector to the battery (+) and listening to it.

*The fuel pump check wire is one of 3 single wires tucked in by the battery kind of under the wiper motor. There's a wire with a blue connector (tach signal), one with a tan connector (idle speed set wire) and the one you want, with a black connector.

Alright! I'll do that in the morning.

I've asked this several times in other threads I've started but could this be the MFI?

Doesn't the MFI control JUST fuel? Ahh this is confusing

[Steve '92ES]

There's two parts to the MFI. One part controls the fuel pump and turns on the ECU. The other half controls the injectors and engine sensors. The first part must turn on for the second half to work.
If the second half doesn't turn on you'll get no spark (no engine sensors = no spark)
By testing for power at the fuel pump check wire while cranking you are confirming that the first part did turn on, and that the fuses going to it are good.

That's pretty much all the MFI does, If you're getting fuel and spark it isn't the MFI.

[MaxClass]

You only need three things for the car to run

1. Air, which we all have.
2. Spark and
3. Fuel

Take any one away and it's a no go.

Pull a plug wire and hold it near a ground and have someone turn over the engine.

If it sparks you have spark.

If not, look for fuel. Without fuel pressure the injectors won't work at all.

Our cars have a fuel relay that is mounted on the passengers side of the center console about halfway to the floor. You should hear it click when you turn on the key. The fuel pump won't work if that relay is bad. Also close the drivers door so you don't hear the annoying noise from the door being open.

[3kgt1734]

There's two parts to the MFI. One part controls the fuel pump and turns on the ECU. The other half controls the injectors and engine sensors. The first part must turn on for the second half to work.
If the second half doesn't turn on you'll get no spark (no engine sensors = no spark)
By testing for power at the fuel pump check wire while cranking you are confirming that the first part did turn on, and that the fuses going to it are good.

That's pretty much all the MFI does, If you're getting fuel and spark it isn't the MFI.

You, sir, are a wealth of knowledge.

Alright so I guess tomorrow I do the Fuel Pump checkwire thing and go from there.

Thanks

[Steve '92ES]

Ha! In May it'll be 20 years I've owned one of these beasties. I was bound to learn something...

[3kgt1734]

Ha! In May it'll be 20 years I've owned one of these beasties. I was bound to learn something...

WOW. You've owned a 3s longer than I've been alive!

[stealthee]

You only need three things for the car to run

1. Air, which we all have.
2. Spark and
3. Fuel

Take any one away and it's a no go.

Pull a plug wire and hold it near a ground and have someone turn over the engine.

If it sparks you have spark.

If not, look for fuel. Without fuel pressure the injectors won't work at all.

Our cars have a fuel relay that is mounted on the passengers side of the center console about halfway to the floor. You should hear it click when you turn on the key. The fuel pump won't work if that relay is bad. Also close the drivers door so you don't hear the annoying noise from the door being open.

That is the MFI relay. Had you taken the time to read the posts you would have seen it was just discussed only one post before your post.

[GTOJOE]

Well i'm glad some other ppl jumped on board. My limited experience was starting to show

[Nihil]

Your ECU won't "communicate" to any logger, you're a hybrid, you need Shivers (Chris) special cable and software, which mitsu should have known, you got shafted for a new ECU because of them...also 9 times outta 10, when the ECU is "bad" you can just replace the caps and it'll be as good as new. Just throwin that info out there, I didn't see anyone mention the hybrid, unless I overlooked it, then sorry, but all models of the 3S between '94-'95 were hybrids and I believe Shiver is the only person to make a logger for it, unless you go with something elaborately fancey like somethin like EVO scan, which would be a waste of money