Check Engine Light Malfunction? / ceu??


Asked by Aug 27, 2013 at 09:13 PM about the 1997 Toyota Tacoma 2 Dr STD Standard Cab SB

Question type: Maintenance & Repair

ok long story short. What I did for about 2 years now is I noticed my gas mileage went
to hell. It started losing power and noticed the exhaust pipe puts out black sut. I put on
a brand new O2 sensor last year, upstream and downstream. I thought that was going
to fix it but it didn't. So I took the Catalytic Converter off, no change and funny thing is
NO CHECK ENGINE LIGHT ON and no Catalytic Converter something is wrong need
advice on what might be going on.

2 Answers


Try to have the codes pulled any way, there may be a failure in the ecm itself that is why no light or there is a ground or power connection failure for the engine controls.

James Ramond

good call tennisshoes, the check engine light should light prior to start position to prove it exists also

Your Answer

Add photo

Search Toyota Tacoma Questions

Toyota Tacoma Experts

#1 FordNut
Reputation 840
#2 Tom Demyan
Tom Demyan
Reputation 830
#3 genxer36
Reputation 300
View All

Related Models For Sale

Used Nissan Frontier"
483 Great Deals out of 20,719 listings starting at $2,500
Used Ford F-150"
3,271 Great Deals out of 216,769 listings starting at $1,000
Used Toyota 4Runner"
388 Great Deals out of 18,866 listings starting at $2,400
Used Ford Ranger"
271 Great Deals out of 7,819 listings starting at $988
Used GMC Sierra 1500"
1,061 Great Deals out of 56,419 listings starting at $2,400
Used Jeep Wrangler"
456 Great Deals out of 16,357 listings starting at $2,395
Used Dodge Ram 1500"
545 Great Deals out of 13,920 listings starting at $1,595
Used Toyota Corolla"
1,483 Great Deals out of 67,391 listings starting at $1,295
Used Toyota Camry"
1,734 Great Deals out of 98,547 listings starting at $895

Used Cars For Sale

2017 Toyota Tacoma For Sale
10,951 listings starting at $22,608
2016 Toyota Tacoma For Sale
35 Great Deals out of 2,844 listings starting at $20,995
2015 Toyota Tacoma For Sale
86 Great Deals out of 2,593 listings starting at $14,900
2014 Toyota Tacoma For Sale
91 Great Deals out of 2,142 listings starting at $12,496
2013 Toyota Tacoma For Sale
79 Great Deals out of 2,462 listings starting at $7,498