ok preferably a smog tech guru that you guys would trust knows their way around as 2gnt or is good enough that they'd get to the bottom of my misfiring problems... i'm done trying to figure it out and just need it done fast. a no BS mechanic who will not belittle me and treat me like i don't know sh*t about my own car. my registration is already 5 months overdue because i can't fix my misfire problem so i can't pass smog, (no engine mods anymore except aem intake) please!!! if possible, just email to me at byakko125@gmail.com THANK YOU!

I'd probably check my plugs, then wires, then coils. Really anything spark related.

Originally posted by JWoodley
I'd probably check my plugs, then wires, then coils. Really anything spark related.

trust me, i've gone through a lot of trouble shooting, starting with new coil, wires, plugs, ecu, iac motor, injectors, injector cleaner, pcv valve, cleaning out the tb and changing tb gasket, air filter, grounding kit, etc etc... i'm sick of tryin to do it myself and need an extremely confident mechanic because i know my way around my car pretty well so its definitely not an obvious problem at all, i've already taken it to 3 mechanics including a mitsubishi dealer garage and they were no help

Where in LA are you located?

I'm not a good mechanic, and I will probably belittle you and make fun of you, but I'll take a swing at it if you need help. ;)

Road/Race Engineering in Santa Fe Springs is the best DSM shop around here, but they hate 2GNTs and there is at least a 6 week waiting list to get in.

Maybe some of the signal sensors?

I let soemone borrow my datalogger , but have you loged it at all?

Oh and BTW, The Dawg is a straight up a-hole. Get ready, if you seriously dont know shit then he will let you know. It doesnt help that he looks like a 500 pound gorilla.

i'm in south pasadena, but OC's not too bad, hoepfully not farther than say... cerritos, and i work out in santa monica, i guess glendale/la canada and torrance would make my square of where i'd be willing to go... yeah i kno of RRE and yeah i also know they prefer GS-T's 2gnt's or GS-HRC/GS-Star but yeah i've been wanting to get a datalogger, but money's kinda been tight, so i haven't been able to check the vitals, i had them scan it at mitsu dealer, but that was w/ my bad ecu, so the data they got isn't dependable, basically the only thing i know is, that it doesn't seem to be a problem within the ignition, COULD be fuel (or maybe timing?) related, codes i'm getting are 12, 43, 25, sometimes 31, 55, and yeah i've read what each of them are many times.. not the injectors, picked up a grounding kit to eliminate bad ground, threw in an optima battery, TB gasket and swapped the iac, checked tps which was within spec, and cleaned the TB, haven't yet checked my o2 sensors... and its late, so i can't think of what else...

DUDE you are like a drive down Rosemead away from me (montebello), TheDawg ( Santa Fe springs) , Or Clay ( alhambra).

Where did you buy the sensors? I know people get them at autozone and napa and assume they work. Happened to a friend. I just let him have a spare I had and it worked, unlike the "new" autozone one.

Check it. The TPS as well, and even the MAP ( why not?).

yeah well car is at a friends dad's smog place right now... if they can't figure it out by the end of the week, i'll hit you guys up... but i didn't get any new sensors, i used my multimeter on my tps and transition looked smooth and appeared to operate fine, o2 sensors i haven't checked yet at all, nor the MAP... at speed though, car seems to run fine... idle even doesn't noticeably stutter, but exhaust smells a bit rich, neutral idles high, in gear idles around 800-900 and listening to the exhaust at idle sounds a little erratic

have you replaced the coolant temp sensor? On the water neck under the radiator cap? Solved my misfire once. ECU also uses coolant temp as a gauge of internal temps and adjusts fuel accordingly. Might be something to try. Runs about $20 at Autozone and takes about 5 minutes to change with a crescent wrench.

Good luck man. :thumbsup

Originally posted by DR1665v2
have you replaced the coolant temp sensor? On the water neck under the radiator cap? Solved my misfire once. ECU also uses coolant temp as a gauge of internal temps and adjusts fuel accordingly. Might be something to try. Runs about $20 at Autozone and takes about 5 minutes to change with a crescent wrench. Good luck man. :thumbsup

yep... but i was at the dealer when he suggested that and i was like "ok why not, lets try it".. 75 down the hole.. he talked me into doing a radiator flush too while i was there... so all in all.. about 200 after labor and tax, didn't do anything =)

One of them is for your gauge the other is for your ECU.

BTW what dealer was this? Theres a reason we call them SATAN.

where exatly are you? If you want theDawg to give it a shot e-mail him or something. He is a busy guy and all but he is cool. I was just playing with that brutal raw meat eating thing.

If anything I can try and help. Im on campus right now though.

it was the dealer in alhambra... the ect sensor they changed was the brass one right under the upper radiator hose

hey could you guys drop me your aim/msn sn or maybe even phone # if you're willing so i can hit you guys up if i need to? still waiting on the mechanic tho... so we'll see how it goes

they replaced your coolant temp sensor, thats known to cause problems when it goes out.

you can hit me up ANYTIME, i know my way around the 420a powered 2g VERY well....AIM is zao684, name is josh but people just call me turby ;)

im socal too

any progress yet new one? :afro

EZ your sig pics are giving me a seizure. :eek

welp, he says smog computer isolated problem to a bad ecu (yeah its still in the shop) this is the used ecu that i swapped in a few months ago and it didn't seem to have any problems in the beginning... i guess the obdII scanner isn't able to access some of the info from the ecu, not to clear on how smog comps interface w/ obdII's....

What year is your car?
I have a 95 MTX ECU that I am selling for 160 picked up.

ok... FINALLY got the car back, but still same problems, only lost the 43 misfire CEL code but the car doesn't seem to run any differently. my car is early 96, had the round pins for the coil harness (i think thats an identifying characteristic?) so obviously, this mechanic had it for 4 weeks total and got nowhere with it... i'm willing to try anyone that can GUARANTEE me to specifically find out what the problem is... (sorry if i sound kind of demanding but i'm a bit frustrated) my aol im sn is iamadamshing and my email is byakko125@gmail.com my lines are open! and i live in south pasadena, CA so hopefully someone close... i'm unemployed at the moment so i'm free all day, my garage has pretty much any tools you'd need including air compressor and airgun so anyone that can help, probably just need to bring yourself and maybe a datalogger or somethin THANKS!

a gun with 650 ft-lbs? sorry inside thing lol

hahah uhm well, if you like, can rig it up to my torque wrench and let you know... if it goes that high, i'd probably need to somehow connect a bunch of torque wrenches inline and add their collective settings? hah.. i'm tired.. it led to babbling, but seriously, anyone up to see if they can figure out my problem? i can come to you too.. i'm prolly just gonna get a pass under the table first just so i can get my tags, but i'd still like to figure out this problem...

Take up Dan "TheDawg" on his offer. I know he is a busy guy so dont look for a reply till after he is home from work.

ok, went to smog tech and he passed me, but this is the info i got from the diagnostic scan:

ECU ID: 40
Manufacturer specific codes:
B1404
P1294
C03E0
C16F3
U1700

Continuously Monitered Systems DTCs, Mode 7:

P0304
Cylinder 4 misfire detected

i don't know what those other codes are, i only know the ones that start with P, anyone know?

ok, so threads were welded on my old o2 sensor when i took it out... figured what the hell and go the ssautochromes, put in the new bosch o2, threw it all in, same thing... sounds a little cooler, little less hesitation but still misfiring and engine still rockin pretty hard... AGAHGAGAGH

well when do you have time?
I still have to get my datalogger back, but when I do we can take a look.

FINALLY, good 'ol dad helped me isolate the problem to cylinder 4 not firing, getting spark, but no combustion, guess i'm losin compression or something, but at least now i know where to look...

so your getting spark ... but no burn? you need 3 things for that, Spark, air and ....Fuel. Hows that injector?