3sgte problem, cant get over 4000 rpm Options

[thedevilmaycrie]

ok heres the thing i just finished my engine swap...... all vac lines are hookes up right...... electrical checks good...... engine is outta a mr2 jdm..... can anyone tell me what the hell is going on ..... on the interstate once i get to 4k rpm the engine starts cutting out like its the fuel is being cut off and i cant reach over 4.5k before the engine wont go any higher...... any thoughs .... any?

[Supersprynt]

I have the SAME problem, I havent started looking into it i've been too busy but as soon as things calm down im ripping it apart again. But if uget anywhere, IM me "Supersprynt" we'll work together on it.

[Andason]

cough mikes harness cough

j/p mike

This post has been edited by Andason: Dec 9, 2003 - 5:38 PM

[zipstrips]

check the 2bar map sensor.. do they go bad?

[XSTeknique]

Atleast you guys can drive your cars. Mine won't start, so I've yet to find out if I can go over 4k or not. Did you guys have Mike do your harnesses too? Just curious, wondering how many other people had their's done by him.

[97sccelica]

[Supersprynt]

I did it myself but Mike provided the diagram to which i did it, so its according to how he does it. I've asked Mike about it and he said ignition problem and perhaps something with the tach, but he doesnt really know. I was HOPING a cold solder, but now that he has the same problem...i dunno.

I have a rev/speed meter, and when it approaches that point where it cuts off, the tach stays a constant 4000-4.5K but the RSM gets lower as it gets closer. Its weird.

And XS, did you do a spark test to see if your even getting spark? You gotta eliminate it one by one, fuel, spark and oxygen create combustion. So check ur fuel pump, ur solenoid, ur distributor, ur AFM. Mine didnt start the very first time but its cuz i was missing the solenoid...after that it started right up.

Only thing is you have an MR2, which is like a 91-92 3sgte, i have a 92/93 3sgte, and yes they do differ in wiring.

This post has been edited by Supersprynt: Dec 9, 2003 - 10:43 PM

[Jabberwock]

hmm....I am not sure but can it have anything to do with the AFM....

[lagos]

guys, talk to thats_right on celica.net. i remember him having the same problem and he got it fixed. before he fixed it he said that he thought it was the dist cap and rotor, but im not sure if thats what it was in the end.

[thedevilmaycrie]

hey guys i gotta idea has anyone added a boost-a-pump or a high pressure pump cause the 5sfe runs a lower pressure then the 3sgte and it only happens at high rpms

[kuya1284]

[Supersprynt]

It happens at 4 - 4500 RPM's which, for the 3sgte, is low because max hp is at 6.

And what is happening is a complete halting of the engine, how can the fuel pump work fine sub-4 and doesnt work at all above? I dont get it ?

Also, i've replaced the dist. cap, ignition coil, and spark wires, and plugs, no effect.

This post has been edited by Supersprynt: Dec 10, 2003 - 1:17 PM

[97sccelica]

[NEVERSTOP]

I never had a problem like this before with my straight 205 but now that I am doing the 185 topend on the 205 block I will need a harness done, and have been thinkin about havin mike do it.. I'm really curious if its something to do with how the harness is done or is it just a coincedence..

what PSI of boost is your cars at when it shuts down.. stock 3sgte will do a fuel cut a 16 psi ( I think thats when it is ) that could possible be your prob

[Supersprynt]

I think its 12psi max and mines running 8.5 right now. It wont go over in neutral or driving.

The check engine lights does come on when it happens, but goes off right after...so I'm gonig to check the codes to see what the ecu is telling me.
Ne body know the website that lists 3s ecu codes?

This post has been edited by Supersprynt: Dec 10, 2003 - 2:17 PM

[thedevilmaycrie]

super mine is doing the same damn thing with the check light im leaning toward my suggestion of the fuel pump

[Supersprynt]

Check ur engine code see if it tells you anything

[XSTeknique]

No, I don't have an MR2 motor. It's out of a ST185. Thanks for the tips guys...we're checking...

[sphinx]

well, i dont know if anyone remember or not, or even cares for that matter, but i am having issues with getting mine started.

my motor is from a jdm st185, and i know i'm missing the EFI solenoid. BUT NOT ANY MORE.

Despite all the bad rap that ToySport gets and all, and i know for a fact that they are a bunch of pricks, i was down to my last resort, so i called them up about the solinoid, and joel said that he had one. This was yesterday. Today at lunch time, i went over there, and long behold, he had one. He gave it to me for $50.

So now i just have to hook it up and hopefully my car will start.


*preys*

[Supersprynt]

Yeah thats where i got my solenoid, and i had to deal with Joel too, but he did keep calling me back to make sure he had the right part.

And my engine is an JDM ST185 3s too.