Damn dsm curse....
 

Well here goes i bought a auto 1g dsm shell and put a jdm longblock and got it running.The fucktard who sold me the car failed to mention the tranny ecu was missing so i bought a used one from a reputable friend.I pop it in and the car drives/shifts perfect for almost 100 miles and then the tranny starts acting up again.It was a random problem now it just stays in limp mode(it stays in 3rd gear).I checked the ecu board before i bought it and looked at it today and it looks clean.Now before anybody starts a arguement i have broken 4 5 speed dsm trannies and my goal is 300whp or 13's out of this car.If i cant figure it out int he next week i'm selling the bitch and getting another eg hatch.Any input would be appreciated and this is my 13th 1g dsm turbo.I'm very mechanically able i just dont have the ancient scantool to check the tranny code and work at large dealership.Any input would appreciated.

Re: Damn dsm curse....
 

you bought a dsm. ;)
This is gonna sound stupid as ----, but did you reset the ecu.
other then that all i know is chevy and honda ----.

Re: Damn dsm curse....
 

5 speed dsm trannies use a TCU??

Re: Damn dsm curse....
 

No its a AUTO 5 speeds break to easy on dsms.I just flipped over the ecu board and theres corrosion on the board.I guess i hopefully found my problem.

Re: Damn dsm curse....
 

dont they have shift cyl and ---- in the tranny. i hope its something simple like the tranny ecu but dont rule out bigger problems

Re: Damn dsm curse....
 

Yea they have solenoids but its a inconsistent problem which makes me rule it out.Usually when a tranny has problems it will grind or shift into the gear hard(same as a manual).I wish mitsu would have put the shift points into the engine ecu like everyone else instead of seperately.Damn dsm ecu's are all garbage.

Re: Damn dsm curse....
 

i had a sunfire the always stayed in 3 but it was becouse the 1-2 shift cyl were bad that is why i thought to say something

Re: Damn dsm curse....
 

Yea i feel ya but these cars leave in in 3rd to get it to a shop.Ive seen cars not crank due to a low oil pressure or a bad sender(some toyotas and hondas).I hope i get this figured out i'm dying to mod it and get to a track.

Re: Damn dsm curse....
 

i bet anything its the tranny ecu, the one on my jeep fucks up sometimes and starts out in 3rd

Re: Damn dsm curse....
 

If you've got all those manual tranny's laying around, why not just swap one in and be done with it? Sheppard trans ftw IMO, but that's baller prices right there. Maybe someday I can afford a shep built tranny for my skeevo :P

Re: Damn dsm curse....
 

1G trannies especially 1ga suck hooker slit. Auto is even worse. They did a bit better with the 2G especially the FWD turbo, but still notchy as ---- and the hydraulic clutch system is horrid. Fucked master and slave cylinders like nothing lol. I can only imagine ------- with electronics for a transmission and definitely don't envy you.

I must be crazy too because I'm going to look at a 95 Talon TSi tommorow that is having issues. Here comes one of the most frustrating weekends of my life taking apart Mitsu engineers complete ridiculousness. I swear some of the ---- looks like they made it up as they went rofl. Oh well, AWD 2Gs' kick ass when they've been sorted well and swapped correctly. There's a good chance this one is starting to walk. Yippie! ::)

Re: Damn dsm curse....
 

Mistu doesnt hire engineers. They employ monkees with the ability to draw inside the lines.

There's no such thing as a good dsm tranny. They all suck. And ill be damned if ill ever rebuild another one. Id rather have a kseries....oh wait I do lol.

Dsm trannys were designed for the early lancer/cyborg, the heavyest of which tipped the scales at 2400lbs. Now lets see, the LIGHTEST dsm weighs what like 2850 1g fwd laser right? Now in a car like the mirage/summit/colt reliability wouldnt be an issue. However, when you start adding serious power to a HEAVY chassis (awd 2gs are worse) ---- starts to break. The tranny isnt the problem. The weight of the car is.
On my last 1g, I STRIPPED THE TEETH from third gear. No I dont mean 3rd grinded, I physically stripped the teeth, counter and main. The center diff is a joke, and dont even get me started on the transfer case.

You dont see honda with these problems do you? The heaviest integra 4door is lighter than the lightest dsm. Yet if you put the gearsets side by side, the physical size is similar, as well as the final drive. Food for thought.

Re: Damn dsm curse....
 

+1 ive known all that for years(after a good talking with the only trusted dsm tranny builder in my area).I found corrosion on the bottom of the tcu and cleaned it off and it started shifting fine again.I'll drive it tonite and if it doesnt come back i think i found my problem.I refuse to ever work on a 2g awd tranny job again unless its def worth my while.

Re: Damn dsm curse....
 

Hell yeah that makes sense. Never really thought about it like that. I always just questioned the strength of the internals and didn't fully think about the drivetrain as a whole.

I must have had good luck with mine. My 1st 2G tranny I cracked going over a bump at like 70 so that was my fault. The 2nd one is from a 98 GS-T and it's actually really good. It still is notchy though and compared to a B16 or M3 tranny it's ----.

However, today I just bought a 95 TSi AWD ($1500 bitches and clean as ---- especially the interior) and a swear to you it has the smoothest most easy shifting transmission I have ever felt in a DSM if not damn near any car I've ever driven. It isn't notchy at all and it doesn't make any noise or even a tiny grind in any gear. It's precise and has zero slop below 6k rpm. I haven't tried high rpm or NLTS with it yet though and I'm sure I'll start to see some shitiness when I do. I hear and have experienced a little that DSM trannys shift like ass at any kind of high rpms. The new TSi only has 102k on it though so maybe it just hasn't reached it's full suck potential yet.

Re: Damn dsm curse....
 

Well i got a tranny scanner from a guy at a tranny shop and we drove the car around.All the solenoids and the computer were fine its a tranny clutch.It was noticing a bad 2-3rd shift and loss of pressure.Well i guess i'm out of dsms again.... :S

Re: Damn dsm curse....
 

I would be suspect the valve body. If you have good pressure in all the other gears, and no other problems, and the torque converter doesnt feel like its "slipping" thats where id look.

Re: Damn dsm curse....
 

---- this pos all i wanted was a 14 second pass and the bitch breaks before i even get there.Hmt turbo once cam is coming back nuggas!!!

Re: Damn dsm curse....
 

Well i bought a eg hatch last night.... ;D