3vz lean fuel problem - help! - Page 2

zlzgrom86 · 03-11-2009, 02:39 PM

seems like it fixed the problem

Jason.MZW20 · 03-11-2009, 06:18 PM

Awesome.

OBDI codes are a little vague.

mr2v63vz · 11-08-2009, 10:55 PM

Quote:

Originally Posted by zlzgrom86

Fuel pressure right after the fuel pump, before fuel pressure regulator is a constant 40psi. After a few minutes after I shut the car down the pressure rose a bit to 45psi. Guess thats normal because there is no velocity.

So I guess the fuel pump is ok? What do I test next and how? There is no intake manifold leak I confirmed that too with carb cleaner method.

Im still guessing its the front bank oxygen sensor. There goes the cash.

whats the carb cleaner method? i have a 3vz thats running lean and i think its an air or vacum leak i also have a code 55 for the knock sensor but im assuming thats bcause of the lean

DaveMush · 11-09-2009, 11:40 AM

spray carb or intake cleaner near all the intake gaskets/hoses. if the car's idle changes, then you know there is a leak in that area.

mr2v63vz · 11-09-2009, 12:46 PM

oo thats a good idea will try

mr2v63vz · 11-21-2009, 07:58 PM

hey so i think i have the same prob you did i have a code for running lean but my plugs look a lil rich? did your cel wait to go on everytime you started the car? mines off when i start it and waits untill i get on it to turn on , if your looking at the motor on the back of an mr2 bay is the bank closest to the walll the first bank?

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03-11-2009, 02:39 PM	#21 (permalink)
zlzgrom86 Some Skills Join Date: Nov 2008 Posts: 51 Thanks: 2 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	seems like it fixed the problem

03-11-2009, 06:18 PM	#22 (permalink)
Jason.MZW20 Pig Snout Join Date: Jul 2006 Location: Victorville, CA Posts: 1,373 Thanks: 15 Thanked 111 Times in 102 Posts Blog Entries: 6 iTrader Rating: (2/100% )	Awesome. OBDI codes are a little vague.

11-09-2009, 11:40 AM	#24 (permalink)
DaveMush Mr2 V6 #8 Join Date: Aug 2005 Location: Syracuse, Ny Posts: 413 Thanks: 0 Thanked 14 Times in 11 Posts iTrader Rating: (0/0% )	spray carb or intake cleaner near all the intake gaskets/hoses. if the car's idle changes, then you know there is a leak in that area.

11-09-2009, 12:46 PM	#25 (permalink)
mr2v63vz Cage Fighter Join Date: Jul 2009 Location: New windsor,NY Posts: 828 Thanks: 95 Thanked 11 Times in 11 Posts My Google Map iTrader Rating: (7/100% )	oo thats a good idea will try

11-21-2009, 07:58 PM	#26 (permalink)
mr2v63vz Cage Fighter Join Date: Jul 2009 Location: New windsor,NY Posts: 828 Thanks: 95 Thanked 11 Times in 11 Posts My Google Map iTrader Rating: (7/100% )	hey so i think i have the same prob you did i have a code for running lean but my plugs look a lil rich? did your cel wait to go on everytime you started the car? mines off when i start it and waits untill i get on it to turn on , if your looking at the motor on the back of an mr2 bay is the bank closest to the walll the first bank?