Engine swap/check engine light? - YotaTech Forums
YotaTech Forums  

Go Back   YotaTech Forums > Toyota Forums Available > Toyota SUV & Truck Tech > 86-95 Trucks & 4Runners

Welcome to Yotatech!
Welcome to Yotatech,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
Thread Tools Search this Thread
Old 11-29-2006, 06:30 PM   #1 (permalink)
Registered User
 
Join Date: Sep 2006
Posts: 46
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
This ad is not displayed to registered members.
Register your free account today and become a member on Yotatech!

Last edited by spacoli; 11-29-2006 at 06:34 PM.
spacoli is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 11-29-2006, 07:39 PM   #2 (permalink)
Registered User
 
Join Date: Jun 2006
Location: austin, tx
Posts: 1,825
Send a message via AIM to dcg9381
There isn't a real diagnostic check that I know about for an 02 sensor, unless it's totally dead...
I'd replace it yourself, it should clear the code.
__________________
http://www.22REturbo.net
dcg9381 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Reply

Tags
check, engine, light, swap

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
check engine light? myfinalcoffin 86-95 Trucks & 4Runners 3 02-20-2006 08:04 AM
Check Engine Light!!! MUDN4R 86-95 Trucks & 4Runners 2 02-08-2006 07:23 PM
Engine Miss/Check engine light - Possibly TPS? Extremesolo 95.5-2004 Tacomas & 96-2002 4Runners 2 09-17-2005 09:58 PM
Check engine light is on. What to do now? cccp 95.5-2004 Tacomas & 96-2002 4Runners 22 03-30-2005 05:50 PM
check engine light + engine miss descendents 95.5-2004 Tacomas & 96-2002 4Runners 6 11-03-2003 07:51 PM


All times are GMT -8. The time now is 01:04 PM.


Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.1.0
Powered by vbWiki Pro . Copyright ©2006, NuHit, LLC
2009 InternetBrands, Inc.