2jzge misfire

[dazzej257]

hay guys just finished doing my 2jzge swap in my mx83 it starts fine and idles great and drives fine if i dont push it past 3500rpm then i get a bad misfire like fuel cut . same as if i free rev it i get a misfire also at the same rpm so i just asking if eney of the other guys that have done the swap had the same prblem . or if you guys could popint me in the right direction . i have changed plugs and leads still the same it has a new fuel filter on it also . but im running the standerd fuel pump from the mx83 with constent 12v . so could this be the cause of not having the fuel pump control from the supra or not

cheers darran

[dumbass]

sounds like u have the dreaded 4000 rpm rev cut heheheheh

[dazzej257]

sounds like u have the dreaded 4000 rpm rev cut heheheheh

thats what it feels like and its starting to sh!t me

[wilbo666]

I'd check the NSW wiring...

http://wilbo666.pbworks.com/w/page/4...ne%20ECU%20Pin

Cheers
Wilbo

[dazzej257]

wilbo y do you think nsw it starts and runs fine

[wilbo666]

wilbo y do you think nsw it starts and runs fine

I have a recollection of other people having similar issues related to NSW wiring.

Just my suggestion

Cheers
Wilbo

[dumbass]

Mx83 has thick wires from key to inhibitor then to starter solenoid
Most other late Toyota engines have thin wires

It's means u need to hook up a relay for the inhibitor and starter to work properly
So if this isn't done right some cars have rev limit at 4000

[George]

+1 for the above. Even if the NSW pin is not the case, you'll narrow your list of possible problems

[dazzej257]

Mx83 has thick wires from key to inhibitor then to starter solenoid
Most other late Toyota engines have thin wires

It's means u need to hook up a relay for the inhibitor and starter to work properly
So if this isn't done right some cars have rev limit at 4000

ok so i bypassed the nsw and still get the same problem will only rev to 4000rpm could this be the cause of a speed signal missing or the CAS is stuffed . i did the fault code and it bring up fault code 12.

[George]

I'd be a bit anal about your saying 'bypassed' . What did you do exactly? Does NSW receive 0V?

[dumbass]

just cut the sta and the nsw wires from the ecu
then see if it still does it
if it does then it could be anything

[George]

Opposite to dumbass, I'd put the auto in P, ground the NSW pin then try to redline engine. If it's still limited to 4000 rpm I'd start playing with crank/cam sensor. Probably check for missing teeth, continuity in harness, metal particles on sensors

[dumbass]

i doubt its going to be the dizzy if it has a rev limit at exactly 4000 rpm
most toyotas if there is something wired wrong will have a rev limit at 2500
or at 4000

u would expect it to be missing all over the shop if it was dizzy and not spot on at 4000

did u get the ignitor all in the same kit on same motor on same front cut
as with some motors if u use the wrong ignitor u get 4000 rpm limit and error code 12 13 or 14 if its igntiion related

[dazzej257]

i doubt its going to be the dizzy if it has a rev limit at exactly 4000 rpm
most toyotas if there is something wired wrong will have a rev limit at 2500
or at 4000

u would expect it to be missing all over the shop if it was dizzy and not spot on at 4000

did u get the ignitor all in the same kit on same motor on same front cut
as with some motors if u use the wrong ignitor u get 4000 rpm limit and error code 12 13 or 14 if its igntiion related

Has eney 1 got how they did the nsw wiring cause I think that maybe the problem I just want to check if I have done it right

[dumbass]

start signal to inhibitor
start signal rom inhibitor to relay pin 85
relay pin 86 to ground
bat to pin 30
pin 87 to starter solenoid
nsw wire goes to start signal before inhibitor
sta wir goes to start signal after inhibitor

pretty simple