Engine swap/check engine light?
#1
Engine swap/check engine light?
I'm recently replace the engine in a 93 p-u with a used engine (100,000mile).
My check engine light is on, so I did some research and did the jumper wire in the diagnostic box and got a two digit number, 21. Which has to do with the O2 sensor.
I'm not sure if the light was on previous to replacing the engine, since I did not own or run it.
I have been checking my gas milage and I'm getting 17mpg (city/highway), which doesn't seem to be off the norm from what I read. I would like to get more MPG if possible. I have a highway trip coming up and plan on checking highway mpg.
Should I have a shop do a diagnostic check to make sure I need a O2 sensor before I go replace it. If I do replace it, will the check engine light go off if that was the problem or will the shop need to clear it off?
Thanks
My check engine light is on, so I did some research and did the jumper wire in the diagnostic box and got a two digit number, 21. Which has to do with the O2 sensor.
I'm not sure if the light was on previous to replacing the engine, since I did not own or run it.
I have been checking my gas milage and I'm getting 17mpg (city/highway), which doesn't seem to be off the norm from what I read. I would like to get more MPG if possible. I have a highway trip coming up and plan on checking highway mpg.
Should I have a shop do a diagnostic check to make sure I need a O2 sensor before I go replace it. If I do replace it, will the check engine light go off if that was the problem or will the shop need to clear it off?
Thanks
Last edited by spacoli; 11-29-2006 at 05:34 PM.
Thread
Thread Starter
Forum
Replies
Last Post
ashersullivan88yota
86-95 Trucks & 4Runners
24
01-18-2022 05:37 PM
RedRunner_87
95.5-2004 Tacomas & 96-2002 4Runners (Build-Up Section)
84
06-01-2021 01:51 PM
Johntom240
General Electrical & Lighting Related Topics
7
07-13-2015 12:18 AM
madxman21
86-95 Trucks & 4Runners
2
07-09-2015 10:26 AM