Sounds like that ecu is probably fried. Can't remember, did you replace it with a known working one?

Tyeler18 said:

Sounds like that ecu is probably fried. Can't remember, did you replace it with a known working one?

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Never replaced just inspected it, looked fine to me. Couldnt be the mpi or cas?

MPI unlikely. CAS only if it's losing spark as well. Check to make sure you have spark when the injectors AREN'T pulsing, if you don't have spark or injector pulse I'd look into the CAS/wiring more. If you do have spark the CAS is fine and I'd look into the ecu/wiring at fault. Sounds to me personally more like it's the ECU. Find a local if you can that will let you swap their ecu in and find out.

Hey there guys, just picked up a 92 N/A Eagle Talon this last week. Got it for a hell of a price, traded a pistol and $200. Near mint interior, dash still has it's glow. The only issue is it's not running. Turns over, but doesn't try to start like its not getting fuel. Figured I'd take a crack at it for the price.

One of the DSM Vets helped me identify the engine on another post. It's the N/A 1.8L SOHC 4G37 engine. The PO literally only had the car a month and he couldn't get it to run, lost his job, and sold it. Before him a lady had it since 2006, as I can tell from an old registration. The story goes that she blew the engine somehow and replaced the motor. It then later broke down on her and she sold it to him.

I'm not new to bloody knuckles or slinging wrenches, . I've got two Turbo Toyota Supras(currently doing a complete rebuild on one), Turbo Ford Probe, 3000GT SL, and now the Talon. I love challenges and learning new engines.

I was able to spend just a little time on it today, and it doesn't sound like the fuel pump is kicking on, so today I disconnected the fuel sending line, cranked her over and nothing came out... So she's not getting fuel.

Did a little investigating on the forum and I guess the fuel pump relay is called the MPI relay(is this correct? If I'm wrong about anything let me know as I'm just learning this engine). It does appear that it is hooked up correctly, so I guess there is a possibility of it being bad but I'm thinking it's the pump. Gas smells old and bad as well.

That's where I'm at right now... Looks like I'm going to check Ebay for both a new fuel pump relay(MPI relay) and a fuel pump unless someone on here has one for sale that works good.

Also is there a way to bypass the MPI to test and if so how exactly? I'll post pictures and a video, thanks in advance guys!

Not sure if the 1.8 has it, but on the firewall by the battery on the 4g's there's a single spade terminal that you can give 12v to jump the fuel pump on. Is it getting spark?

I personally have not tested spark yet, however the PO said he did and it was getting spark.

What does this spade terminal look like(do you happen to have a pic of yours) and do I just run a line from the battery to it to jump the pump?

Just go to the back, in the trunk is the fuel pump access door. Under it you can get at the fuel pump/connector. Turn the key to "on" and see if you're getting power on the...... black/white wire I believe it is. The pump only primes during cranking just an FYI. A lot of people think it primes when the keys turned to "on" so don't be fooled if you can't hear the pump.

Unfortunately on my car there is not an access panel in the trunk, but I do already have the rear end jacked up. It's dark and wet outside right now, but I found my test light and I will tackle it tomorrow and keep this thread updated. Thanks for your help bud.

The funny thing is when I was working on my dodge charger the biggest problem with that car was its grounds and the 420a is a chrysler mopar as well. Sounds exactly like the issue I was having with my charger. Check your voltage on the ecu. Your saying the car is cranking right

Here is a video of what's going on:

https://www.youtube.com/watch?v=tuU-UaIM5-w&feature=youtube_gdata_player

Another peculiar thing I noticed is that the oil temp rises all the way as soon as the key is at the on position... Is this a known issue or any ideas?

Also, do 1st Gens have a diagnostic port? I have a OBD 2&1 code reader.

To answer your questions yes its called the MPI relay it stands for Multi Port Injection and is located in the dash behind the radio

ok guys i got a 98gsx,, while drivin down the road it freaked out and burnt the ecu and battery out.. replaced both of them still no start. checked all the fuses, and all the wires i could find, nothin. finally i gave up and took it in. So far the battery, ecu, cam sensor, crank sensor, new coils, plugs, and ignition control module have been replaced. still no start. they said it kind of acted like it was out of time, so they checked that and it was right. they tried taking the exaust off to make sure it wasnt plugged.. the mechanic is now stumped and doesnt know what to do and neither do i, i have waaay too much into this thing, and i need the damn car back so i can quit driving this $100 s10... pleeeease help

Have you checked to see if it was getting fuel cause if your mpi relay isnt working and got fried it wont kick on your fuel pump

That's quite unfortunate . Especially at the hands of a mechanic . Does it have spark and fuel ?

Sorry I misread your title ....your at the mercy of trusting your mechanic tested properly

What about the diagnostic port? Do 1Gs have one and where is it, can't find one if it does. Also, any idea about the oil temp directly jumping to hot as shown in the video?

yes i am sure it has both spark and fuel, my mechanic is a asc certified or whatever but he is a good freind and is doing it on the side to save me the labor charges instead of him doing it at work. so i have been there to help most of the time.. we started with neither but i think it was the crank or maybe cam sensor we got fuel again, then we had only spark on 1 and 4 i believe so i bought the coil, that didnt work, then bought a ignition control module which gave us spark on all 4 cyl. now what it does is you turn it over a few times and the plugs come out wet, we took them out for a day let everything dry out for a few days put them back in and had the same result. then i went and got new plugs and put them in and again same result plugs came out wet.???

Since you burnt so many stuff did you check your fuses? does the engine crank? Why did you replace so many parts were they all bad?

The obd port is down by the dead pedal by your left foot.

As far as the gauge, sounds like there's a short in the wiring or a faulty sender. When they have no resistance (ie short to ground) they'll peg out.

Thanks bro, ordered a new pump tonight, figured it would be good to have regardless. Lots to do tomorrow!

You said your plugs are soaked, check your coolent temp sensor, your ecu thinks more fuel to add sometimes when the sensor is faulty, that's why the plugs are soaked, test the sensor. Probably why it won't start, could be a possibility.

K thanks guys ill have him check that out. And yeah it cranks, and I replaced the computer first ### the oldone was fried, then of course the new one wouldn't pull any codes. And if I remember right he decided the crank sensor or maybe cam was the reason for the fuel pump not running. Then we didn't have spark on 1 &4, so we started with a coil, then the other sensor cam or crank, then found out about the ignition control module which fixed that and gave us spark on all 4cyl. And yes all the fuses have been check. Thanks again guys ill have him test those n see what happens.

So I took the ecu back out, and took a much closer look at it. I think youre on to something Tyeler!






Looks like a lot of black crud stuck to the board in between those two cards, also the cap that looks like a wheel appeaers to have orange/brown stuff stuck on it like it was burnt.

time to contact ECM!

Yuuuup..Theres your problem right there.Damage to the ecu..It's very common.And even more common to cause a no start, a damged ecu..I see it like twice a week on here.

Get ahold of ecmlink yes..And I hope this is not your DD.Cause that ecu needs repaired asap.

Bud92gsx said:

Yuuuup..Theres your problem right there.Damage to the ecu..It's very common.And even more common to cause a no start, a damged ecu..I see it like twice a week on here.

Get ahold of ecmlink yes..And I hope this is not your DD.Cause that ecu needs repaired asap.

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No DD here shes just another face in the crowd of my fleet! haha.

I sent them an email, maybe ill get it ready for dsmlink as well, I'll keep everyone posted.

I own a 91 talon tsi awd man. n I tried starting it with no luck. It doesn't crank. As soon as I try I just hear the fuel pump going n nothing else. I had a new battery put in as well as a new starter. The car sat for a week...could it just be I need a jump ( my old jumper cables were bad so I threw it out which is why I haven't started that) or ignition switch or far worse? I have 99000 miles with new plugs n wires too.