What Is Wrong With This Car

[Quixtar]

My car sometime has a check engine light come under the dash and the car acceleration kinda runs slow. One mechanic said he need to replace knock sensors(1000 dollars job) and other mechanic said he can't find out whats wrong with it you know!!

So I confused Don't know whats going on?

Any help?

[1990LS400]

Did one or more error codes indicate a knock sensor problem? What are the error codes that accompany the check engine light?

[Quixtar]

Did one or more error codes indicate a knock sensor problem? What are the error codes that accompany the check engine light?

One Mechanic says its the knock sensor!!

[Quixtar]

Did one or more error codes indicate a knock sensor problem? What are the error codes that accompany the check engine light?

One Mechanic says its the knock sensor!!

Thats what he said the code said

[nc211]

Get the actual code number and post it up here, or google it, to verify what he is saying. The reader won't "say" what is wrong, it will give a series of numbers that you then use to look up in the mechanic's manual for the car. You want to make sure he's telling you the truth, and verify the code number.

[Quixtar]

Get the actual code number and post it up here, or google it, to verify what he is saying. The reader won't "say" what is wrong, it will give a series of numbers that you then use to look up in the mechanic's manual for the car. You want to make sure he's telling you the truth, and verify the code number.

How do you find a code

[desperado2]

take it to autozone they would do it for free... and also tell you what it means

[George_Jetson]

Yes the same way we told you back on may 8, still having the same problem. Still have not tried anything, but vague questions?