2UZFE ISSUES (7 Viewers)

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

Joined
Aug 14, 2022
Threads
5
Messages
13
Location
Colorado
Hey guys,

I have an '08 GX and for the last few months, I've noticed in higher rpms it would hesitate/break up a bit, and I have been waiting on a misfire code, however I'm thinking it may be my fuel pump on its way out... I got in to go to work this morning and started it letting it warm up, and then idle dropped like it was going to shut off, unless I gave it throttle, it stayed running, got out on to the road, and it was like it hit a wall at 3-3500 RPMs, but then it cleared up... I am not getting any CEL, other then p0456, and I've replaced the cap already so need to smoke test it I reckon tonight. I'm hoping you guys may be able to offer some insight, as i of course have family coming into town on Wednesday, and need to get it fixed. thanks in advance!! I'm leaning towards a fuel pump, OR maybe clogged cat/s due to the fact it clears itself up??? one other thing, I have noticed is, that if i drive someplace, and then park for an hour or two I experience a hard start scenario.. I am stumped.
 
Hey guys,

I have an '08 GX and for the last few months, I've noticed in higher rpms it would hesitate/break up a bit, and I have been waiting on a misfire code, however I'm thinking it may be my fuel pump on its way out... I got in to go to work this morning and started it letting it warm up, and then idle dropped like it was going to shut off, unless I gave it throttle, it stayed running, got out on to the road, and it was like it hit a wall at 3-3500 RPMs, but then it cleared up... I am not getting any CEL, other then p0456, and I've replaced the cap already so need to smoke test it I reckon tonight. I'm hoping you guys may be able to offer some insight, as i of course have family coming into town on Wednesday, and need to get it fixed. thanks in advance!! I'm leaning towards a fuel pump, OR maybe clogged cat/s due to the fact it clears itself up??? one other thing, I have noticed is, that if i drive someplace, and then park for an hour or two I experience a hard start scenario.. I am stumped.
I’m no expert on this, but a common problem on VVTI engines like yours is the secondary air intake

Research this issue more

IMG_4421.jpeg
 
I’m no expert on this, but a common problem on VVTI engines like yours is the secondary air intake

Research this issue mor
I’m no expert on this, but a common problem on VVTI engines like yours is the secondary air intake

Research this issue more
my SAIS is bypassed. I of course go to lunch no problem at the time. the only other weird thing thats happened was a couple of weeks ago I was getting an extremely strong raw fuel smell in the cabin.
 
Last edited:

Users who are viewing this thread

Back
Top Bottom