FRUSTRATIONS AGAIN!!!

[AZN MK3]

ok now that i've bought a 2jz map from the dealership... it still does the same thing... i mean now when i boost it boost to like 6 psi now and it seems as if its redlining bounce up and down really fast.... wonder whats the deal... i feel a little bit of boost but then it cuts off when i hit 6psi and bounces up and down... and the powerband dies.... could it be because i need to tune it or what??? shouldnt it run somewhat differentlly even though i dont tune??? really need help... thanks guys....

 

[mk1spyder]

check your vacuum lines to the map sensor and fuel pressure regulator....try swapping ecu's with a friend.

 

[AZN MK3]

check your vacuum lines to the map sensor and fuel pressure regulator....try swapping ecu's with a friend.

vac line to the map and fuel pressure regulator is fine.... nobody around here has a 1jz nor have i seen any mk3 supras around here who knows what a 1jz is....so pretty much i have to say i cant swap out ecu's with any body.... i looked at the ecu and i see no signs at all of leaking caps....checkd error codes and i still get the same one... code 31... i checkd over my wiring like a million times.... my car is pretty much going in limp mode just like yours... almost to say its the exact same problem... but when i revv up my car it backfires like crazy...doesnt matter if i past 3k or whatever it'll back fire like crazy...

 

[jza71]

Mod list?

 

[s383mmber1]

boost leak? What your timing set at?

 

[AZN MK3]

boost leak? What your timing set at?

no boost leak... checkd all the intercooler pipings and the intercooler... timing is set to 0...

Mod list?

mods are boost controller, 24x12x3 intercooler, and 2.5 intercooler pipings...

 

[AZN MK3]

ok when you guys say leaking caps is this what yall mean??? i know its kinda hard to see the pic but i guess you'll kinda see that it doesnt look normal or I think it doesnt....really hope you guys could see it my camera phone really sucks and i hope i can get it fix... well my question is where do i get it fixed at???

 

[mk1spyder]

Ya my car backfires a good bit at times too but its more random, ive never seen so many problems with 1JZ ecu's, back when I had my first one it was unheard of, mine never had a problem.

 

[AF1JZ]

I've heard the 1jz ecu capacitors start leaking causing problems. Bigaaron at driftmotion offers a service to fix them at a great price.

 

[HIDPLANET]

You cant always visually see a leaky cap either so replacing them is a very good idea and should be done anyways for peace of mind.

 

[AZN MK3]

but do you guys think that, that could be my problem??? and how can you not really see a capacitor leak??? and where else like locally can i take my ecu to get the caps fixed???