1jzgte no boost???????????????? MAP sensor? You have one?

AlexSchuSupra · 04-17-2010, 04:57 AM

Guys I seriously think I am not getting any boost. Maybe a tiny bit of boost but I KNOW a 1JZ-GTE should be pretty darn fast. My stocker boost gauge doesn't work either, I am not sure if it is not hooked up properly or its not working cause there is no boost, but it doesnt show a vacuum at idle just stays at 0. I dont hear the stock twins spooling up or getting louder and barely hear the BOV at all. I just had a new fuel pressure regulator put on cause the one I had before was loosing pressure. Do you think this may be my MAP sensor? Heard that from a couple people now. And does anyone know what the ECU shoud look like for it? I am looking at the one in mine and wondering if its the correct one. Car runs great except for no boost. Any tips would be wonderfully helpfull! Also which year does the 2jz-gte map sensor work for mine?
I have an 87 BTW.
THANKS!

TripleC · 04-19-2010, 05:29 PM

What about a boost leak. if they are spooling then they want to Build Pressure. Check for a Major leak...

AlexSchuSupra · 04-20-2010, 08:17 PM

Quote:

Originally Posted by TripleC

What about a boost leak. if they are spooling then they want to Build Pressure. Check for a Major leak...

Found the problem actually. The custom made frame for the FPR was blocking the turning cam thing for the throttle cable so it was only opening 50% OMG!

Got that remade so its not in the way. Now I am definately boosting!
Its not perfect though. I was running 32psi through my FPR and I had the mech turn it up cause it bucks around 4-5k under WOT. Otherwise it does alot better. So now it is set at 36psi, but I was wondering what the fuel pressure should be at. Reading something about 43? If it is running lean would it cause it to do that?

AlexSchuSupra · 06-17-2010, 08:10 PM

Ok that was the problem along with the MAP sensor. I HAD ONE FROM A NON TURBO CAR! HAHAHA

04-17-2010, 04:57 AM	#1
AlexSchuSupra Intake Join Date: Jan 2009 Location: Scottsdale, AZ Posts: 42	1jzgte no boost???????????????? MAP sensor? You have one? Guys I seriously think I am not getting any boost. Maybe a tiny bit of boost but I KNOW a 1JZ-GTE should be pretty darn fast. My stocker boost gauge doesn't work either, I am not sure if it is not hooked up properly or its not working cause there is no boost, but it doesnt show a vacuum at idle just stays at 0. I dont hear the stock twins spooling up or getting louder and barely hear the BOV at all. I just had a new fuel pressure regulator put on cause the one I had before was loosing pressure. Do you think this may be my MAP sensor? Heard that from a couple people now. And does anyone know what the ECU shoud look like for it? I am looking at the one in mine and wondering if its the correct one. Car runs great except for no boost. Any tips would be wonderfully helpfull! Also which year does the 2jz-gte map sensor work for mine? I have an 87 BTW. THANKS! __________________ 87' 7M-GE Custom fab 3" Headers, Cat-Delete, 4" High Flow Flowmaster (WTF!!!!) MAF Adapter with truck sized Spectre filter. NGK Laser Platinum Plugs. K&N Oil Filter 87' 1JZ-GTE Truck sized Spectre Air filter, Walbro 255LPH Fuel Pump, GM Fuel Pressure Regulator, Welded Rear end gears, Targa Top, 3" Intercooler kit, aluminium intercooler, Ebay boost controller, Ebay Oil-Catch can, I HAVE POWER STEERING AND A/C :P K&N 2JZ Oil filter, Catrol Syntec 10w-40 Fully synthetic oil

04-19-2010, 05:29 PM	#2
TripleC 3" Exhaust Join Date: Nov 2009 Location: Fort Collins, CO Posts: 103	What about a boost leak. if they are spooling then they want to Build Pressure. Check for a Major leak... __________________ 1JZGTE ,R154, Hallman Boost Controller, HKS bov, HKS Mushroom top Air Filter, HKS Front Mount Intercooler, Greedy Turbo Timer, PLX300 AFC, Custom Divorced Y-pipe, Custom Intercooler Pipeing, RS-R Concept Exhaust, Optima Red Top Battery, Strut bar Brembo Rotors, A1 Traction arms, Megan Coilovers, Stern ST 2 wheels rear 265x30 r19 - front 245x35 r19, New Front Lip, 18 x 8 and 18 x 9 MRR HR2 with whatever for Drift treads 2 additional C12A turbo's(Extra)

06-17-2010, 08:10 PM	#4
AlexSchuSupra Intake Join Date: Jan 2009 Location: Scottsdale, AZ Posts: 42	Ok that was the problem along with the MAP sensor. I HAD ONE FROM A NON TURBO CAR! HAHAHA __________________ 87' 7M-GE Custom fab 3" Headers, Cat-Delete, 4" High Flow Flowmaster (WTF!!!!) MAF Adapter with truck sized Spectre filter. NGK Laser Platinum Plugs. K&N Oil Filter 87' 1JZ-GTE Truck sized Spectre Air filter, Walbro 255LPH Fuel Pump, GM Fuel Pressure Regulator, Welded Rear end gears, Targa Top, 3" Intercooler kit, aluminium intercooler, Ebay boost controller, Ebay Oil-Catch can, I HAVE POWER STEERING AND A/C :P K&N 2JZ Oil filter, Catrol Syntec 10w-40 Fully synthetic oil

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