LexusRules

Hey guys, that knocking that was happening has turned into a check engine light... yep same thing as last time im guessing a fuel injector. This time im gonna replace all 6... maybe with GReddy ones, what do you guys think? if i got GReddy what size injectors should i use? would i see power if tuned with an S-AFC?

or should i take the stock toyota ones? im gonna get the new injectos and have my mom only use ONE gas station.

let me know.

v300

Honestly, I don't think your injectors are bad especially in so little time. If you have to replace your injectors, I'd stay with stock injectors. Regardless that doesn't sound too cost efficient. Why not bring your injector to a fuel injector specialists. Down here in Southern California we have a Russ Colins. I believe the GReddy injectors are top feed and require an HKS or some aftermarket fuel rail. Regarding the S-AFC I bet you weren't aware that the GS300 on fuel throttle doesn't come close to using 70% of duty cycle... so larger injectors are not advised and by the way larger injectors will flood your engine unless you totally alter the fuel curve.

LexusRules

ok i'll get stock

well i just think its the fuel injectors because about 6 months ago we lost an injector, actually it was more than that, i think now the rest of them are going.

i think the reason is i put Z-MAX in my engine and fuel system yes i know its very bad well... i think the alcohal in it ate away at the fuel injectors and stuff so ill see.

v300

Regardless, Good luck!

genius1512

Did you try to take it to your dealer to see exactly what it is?

Giro

Have you tried takeing off the your aftermarket intake to see if it's at fault for the check engine light ?