Check Engine Light

[[JZ]]

I have a 98 tacoma 2.4 and the check engine light comes on after cruising on an open road for a while. I think there is a small crack in the exhaust manifold. Does anyone have the same prob?

[wbarrios]

I have a 98 Tacoma SR5 4x4 Kingcab and got that light "Check Engine" one time. But with that light, the truck suddently started shaking really bad for about a minute or two and it stopped. So what I did, I took the truck back to the Toyota Dealer. They did some diagnostics but they did not find anything wrong and said that it was just a false alarm. Since then, I have not seen that light or felt it shaking that bad. If I remember correctly, that was about 5 months ago since I got that light. Hopefully I won't get that light again.

[bamatoyota]

this on many of the newer toyota tacomas

[redtoy92]

Originally Posted by wbarrios

I have a 98 Tacoma SR5 4x4 Kingcab and got that light "Check Engine" one time. But with that light, the truck suddently started shaking really bad for about a minute or two and it stopped. So what I did, I took the truck back to the Toyota Dealer. They did some diagnostics but they did not find anything wrong and said that it was just a false alarm. Since then, I have not seen that light or felt it shaking that bad. If I remember correctly, that was about 5 months ago since I got that light. Hopefully I won't get that light again.

what is a kingcab???

[redtoy92]

Originally Posted by [JZ]

I have a 98 tacoma 2.4 and the check engine light comes on after cruising on an open road for a while. I think there is a small crack in the exhaust manifold. Does anyone have the same prob?

it could be that or maybe your gas cap isn't holding enough pressure or to much. it can be anything that simple. Next time it comes on take it in and have the DA done and the truck computer will give them a code of what is wrong or what part is causing the problem. do you hear any change in your engine when the light comes on? red

[[JZ]]

Well it went away for no reason. I was driving in a parking lot and it went away. maybe i hit a speed bump. I don't know, but if I do a DA ill do it myself. Although you need a code reader and a code book i know where to get a OBDII reader for $40 and i am sure its not hard to get a code book. The dealer wants like $100 a shot.

[bktaco]

if you have a Palm OS PDA, you can also get a software/hardware solution (google odb ii palm, from 200 - 400 $) that will show codes, run real time parameters, and perform chassis dyno charting. they look pretty sweet, but i dont have it yet.

[judgemills68]

The shaking would not come from the gas cap. The dealer had to have read a code. Every time that a code is read on the comp it stores it until it has been manually cleared.

[redtoy92]

Originally Posted by judgemills68

The shaking would not come from the gas cap. The dealer had to have read a code. Every time that a code is read on the comp it stores it until it has been manually cleared.

I know that! that is why i was talking to JZ! He is the one with the engine light one and doesn't know why? no shaking in his truck

['03DC3.4TRD4X4]

Try disconnecting the battery for about 10 minutes to reset the whole system. This has worked for me several times with different modifications I have made that initially "confused" the computer.

['03DC3.4TRD4X4]

also I just recently read that Toyota has had problems with MAF sensors. This will cause the shaking being described. The replacement part is about $150 and less than an hour for install. Also, simply cleaning the sensor has helped in half of the cases.

[jasonja]

I just had the same thing happen to me... Dealer found it to be the MAF sensor... I took it out and cleaned it but the light stayed on. Went back and had the dealer clear the code and no more check engine light so I guess cleaning worked.