Dealer can't figure out problem on 92 sc4
#16
Lexus Champion
Originally posted by jrhone
I would love to be able to replace them myself, but am not technically inclined. Do I have to get the Lexus manual for directions?
I would love to be able to replace them myself, but am not technically inclined. Do I have to get the Lexus manual for directions?
You do need to buy the repair manual to do the testing of the trouble codes. If you're pretty sure that it's the main O2, change it yourself and the money you save on labor you can buy the repair manual
Call 800-908-6968 ask for Steve Ganz or Gordon. Main O2 should be $114 each
#18
Lexus Test Driver
They should be around $150 for the genuine Lexus ones.
Those have to be accessed from the bottom of the car. If you are somewhat mechanically inclined you can do it. Just a 22mm wrench is all you need.
Those have to be accessed from the bottom of the car. If you are somewhat mechanically inclined you can do it. Just a 22mm wrench is all you need.
Last edited by DoubleWhoosh; 04-10-02 at 07:50 PM.
#19
Lexus Champion
Originally posted by DoubleWhoosh
They should be around $150 for the genuine Lexus ones.
Those have to be accessed from the bottom of the car. If you are somewhat mechanically inclined you can do it. Just a 22mm wrench is all you need.
They should be around $150 for the genuine Lexus ones.
Those have to be accessed from the bottom of the car. If you are somewhat mechanically inclined you can do it. Just a 22mm wrench is all you need.
#20
Lexus Champion
Originally posted by jrhone
VQT --
thanks for that suggestion. I am going to try this and let you know how it turns out!
VQT --
thanks for that suggestion. I am going to try this and let you know how it turns out!
#21
Driver School Candidate
Join Date: Apr 2002
Location: GA
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Dealer can't figure out problem on 92 sc4
Code 25 means your SC is running lean. 20 MPG seems a little high. You could have a cracked intake boot or some other leak between the throttle body and mass air flow. You could have a clogged fuel injector or low fuel pressure. You could, however, have oxygen sensors which are old and are reading too slowly for proper fuel metering.
The dealer was willing to bet that the O2 sensors would fix the problem.
The dealer was willing to bet that the O2 sensors would fix the problem.
#22
Lexus Test Driver
tool tool tool i need a tool
Originally posted by DoubleWhoosh
Those have to be accessed from the bottom of the car. If you are somewhat mechanically inclined you can do it. Just a 22mm wrench is all you need.
Those have to be accessed from the bottom of the car. If you are somewhat mechanically inclined you can do it. Just a 22mm wrench is all you need.
so which type should I get?
(22mm size, Adjustable head ) or
(Special 7/8" socket w/ cutaway slot to provide clearance for wire harness, Use w/ 3/8" square drive or 1" wrench.)?
P.S. when I drive at 40mph, my engine sometimes gets unstable, like shaking whole body. Is it something to do with O2 sensor? just wondering.
THANKS
#26
Lexus Champion
Re: tool tool tool i need a tool
Which one is cheaper? I think the bottom one is better. I bought something simmilar to that at pepboy.
Originally posted by Taka
finally I found where O2 sensor is located today(pass side). but I didn't have a removal tool, so I'll try again next time.
so which type should I get?
(22mm size, Adjustable head ) or
(Special 7/8" socket w/ cutaway slot to provide clearance for wire harness, Use w/ 3/8" square drive or 1" wrench.)?
P.S. when I drive at 40mph, my engine sometimes gets unstable, like shaking whole body. Is it something to do with O2 sensor? just wondering.
THANKS
finally I found where O2 sensor is located today(pass side). but I didn't have a removal tool, so I'll try again next time.
so which type should I get?
(22mm size, Adjustable head ) or
(Special 7/8" socket w/ cutaway slot to provide clearance for wire harness, Use w/ 3/8" square drive or 1" wrench.)?
P.S. when I drive at 40mph, my engine sometimes gets unstable, like shaking whole body. Is it something to do with O2 sensor? just wondering.
THANKS
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