MKII problem - Toyota Nation Forum : Toyota Car and Truck Forums

hmsmkII · 10-17-2005, 07:54 PM

ok, my brother brought over his 91 mr2 turbo, and he's having some (more) problems. the car stutters when in first coming from a light under 3k, and sometimes does it in low rpm's in 2nd and 3rd, and i got it to do it in 5th. the whole damn car shakes and jumps.

the car has a shit load of modifications done: (i'm just reading off of the list that the p.o. gave him. i don't know wha most of this stuff is.)
ct-26
3" downpipe
greddy power evo
twos ru's MBC
techton ecu
46 trim compressor (stock injectors)
multi layer steel headgasket

could this be a MAF problem? or does it have something to do with the ignition?

BDSL · 10-17-2005, 08:09 PM

Do a tune-up.

Check ignition timing.
Replace all ignition components.

JekylandHyde · 10-17-2005, 08:33 PM

My guess would be ignition tune up sa BDSL said .. new TOYOTA cap, rotor and wires and some NGK plugs.

Did you happen to mess with the AFM?
There are 2 screws on the side of that appear to hold the big wire onto it.
If you undid those screws you BROKE the AFM.

hmsmkII · 10-17-2005, 08:45 PM

Alright, ill check the wires. May as well do a tune up anyway. am just tired of it being in the shop, first the clutch, and then alternator, now this...

numbone · 10-17-2005, 10:15 PM

yeah those 2 screws are very decieving. i did the same thing only i was removing it very slowly and saw it wasnt spose to come off like that and put it back in. luckily the soldered connections werent damaged. theres a small square clip that u use to remove the MAF plug. took me a while to notice it.