MR2 Died on me, and won't start. Help needed ASAP

Yesterday morning after the car sitting for a week, I hopped in the MR2 and took off to work. I was making a left hand turn in 2nd gear at about 1500 RPMs and the motor just silently turned off. I went to start it back up, and the starter would spin the motor but it just wouldn’t fire on its own.

On the spot, I checked the timing belt, which was good, and still tight as always. I checked the oil, no sign of any sort of bad news in the oil. There was no fluid leakage anywhere. Just a car that turned off on it’s own smoothly and silently, without any warning that wouldn’t turn on.

So I call AAA, and get it flatbedded back home.

Looking over things today, I pulled a spark plug wire, and held it a short difference from some bare steel to see if there was any arcing when trying to start. There was no sign of any arcing or any sort of spark being generated.

Now, school me on distributors… Is there a way to check them to see if they will still fire? Also, is it likely or possible for them to just completely shit the bed like that with absolutely no warning whatsoever?

Check the wiring at the ECU connectors. Last time I looked it was “special”.

I did not do the swap and I do not want to work on it. Good luck my friend.

Haha, I noticed that it doesn’t look toow onderful actually. And I checked for spark before the distributor too, no dice.

I’m not positive that those ECU connections are even soldered, so I’m going to pull all that apart and redo each connection properly, and then go from there.

They are not, there are wires just jammed in there. Have fun. :frowning:

Hm… Bet that could be the culprit then.

making a left hgand turn sounds to me like a battery connection could have came off also? :whoknows: Obviously if it has bastard wiring that can be the culprit but i’ve seen many a time people have a loose batt connection and it stalls.

Did your fuel pump die?

the distributor setup in that car is sloppy also, unless you diagnosed that it isn’t the problem, i’d take a second look at it

lol@don

It isn’t battery. I have full power to everything.

I am not getting spark off the ignitor at all.

I am presuming it’s either the wiring at the ECU, or the Ignitor, which I will also check for voltage output this afternoon.

Bastardized ECU wiring harness, and that it died while turning (aka, some G forces) makes me think something just came loose.

Think of it as a push to make you fix that harness. :slight_smile:

Well, I went thru and found a feww wires that went so stellar, and one was COMPLETELY disconnected from the connector.

Does anyone know how to reconnect a wire to the harness connector?

Does anyone know how to reconnect a loose wire to a wiring harness connector?

Is it even possible, or do I need to buy a new connector and splice the wiring into it?

Edit- Also, the pin is not in the connector.

WTF…

I am gonna throw myself in front of a train over this car.

What’s the deal with the ignition setup?

There is this cylinder shaped part that has the ignition wire that is leading to the distributor, that was ziptied to the resistor packs, just above the ignition coil and ignitor. It has no markings on it, aside from saying 12v and “external resistor required” And the ignitor/ignition coil is plugged in to the harness, but has no spark wire hooked up to it.

Ask Toomey about it…That cylinder part with the ignition wire is a coil. The other cylinder part sounds like a ballast resistor, there is all kinds of voodoo with that car.

Try the Circuit open relay for your feul pump.I’ve seen enough of those go bad on the older Toyota’s.Being that I work at Toyota this would be my first thing to check.

My 93 Pickup had a bad Relay and the truck just shut right off on me with no signs of bad running.I didn’t check plugs or anything because I knew the pump wasn’t engaging.

Can you even hear the Fuel pump kick on when you turn the car on?

[quote=“Carnut,post:14,topic:30593"”]

Ask Toomey about it…That cylinder part with the ignition wire is a coil. The other cylinder part sounds like a ballast resistor, there is all kinds of voodoo with that car.

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yes it is the coil, and yes to voodoo… as for what the cause of this one is I really do not know, but I know that I had my issues with the ignition system on that car as well but they eventualy got shaken out.

I would guess it is more than possible a wire came disconnected due to the way that most of those onnections were made. If at the time I knew anything about wiring and/or saw it like that I would have asked that it be redone much nicer. It looked nice at first glance but looking around the ecu area it gets fugly.

[quote=“95xbird,post:15,topic:30593"”]

Try the Circuit open relay for your feul pump.I’ve seen enough of those go bad on the older Toyota’s.Being that I work at Toyota this would be my first thing to check.

My 93 Pickup had a bad Relay and the truck just shut right off on me with no signs of bad running.I didn’t check plugs or anything because I knew the pump wasn’t engaging.

Can you even hear the Fuel pump kick on when you turn the car on?

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The FP is working, and I can smell fuel after I try to start it.
I’ve still got one wire that needs a home, but cannot find any info online on where it goes or what it does. It’s a light green with red stripe. It is coming out the rear firewall and leads towards the 26-pin connector.

I had a scary similar issue on the Celica. I Made a smooth left hand turn onto Elmwood and at like 2k the motor just shut off. The lights still worked, the radio worked, and everything else worked. So I tryed starting it and it just would not kick over. The starter was whining but the motor just wouldn’t start. I called triple A and had it towed to a shop. Sometimes it had spark. Sometimes it did not. Sometimes the fuel pump would turn on. Sometimes it would not. So they gave up and said they couldn’t fix it. I had it towed to Innovative and Justin along with Jay fixed it in under a minute. It was a 15 amp bus fuse that controlled the starter and ECU.

I am willing to bet that we are in the same boat here. Check your fuses. If that is not it…then I am sorry.:hang:

I’ve checked all fuses. No dice. I still haven’t been able to get an answer on that one wire that needs a home. I want to get that figured out before I go trouble-shooting ignition components.

well this may or may not help you but i just got home from j and j on bailey and there is an mr2 down there the exact same as yours…(color, year) only problem is, the roof is crushed. anymotor parts looked to be untouched and seeing as your care is pretty rare u might be able to snag some parts if u need them. if u want more info pm me im down there usually once every 2 weeks but i can make runs for anyone.