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

96,855

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.

20,815

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

Your Answer

Add photo

Related Questions

  • Check Engine Light Malfunction? / ceu?? 2 answers

    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 senso...

    1997 Toyota Tacoma 2 Dr STD Standard Cab SB

    -

    Maintenance & Repair

  • Check engine light 1 answer

    This code check engine light comes on code post42010

    2004 Toyota Tacoma 4 Dr Prerunner V6 Crew Cab SB

    -

    Maintenance & Repair

  • Check engine light on 4 answers

    2007 Toyota Tacoma 4cl, stick, Check engine light came on about a week ago. Advance Auto says it is code P0031. they told me it is the Heated Oxygen Sensor, Low circuit , bank 1 , sensor 1.........

    Toyota Tacoma

    -

    Maintenance & Repair

  • trac off light on and check engine

    Replaced mass air flow sencor light went off 2 days back on ? Now what do I check

    2012 Toyota Tacoma Double Cab LB V6 4WD

    -

    Maintenance & Repair

  • The check engine light comes on every morning, why? 1 answer

    I have 2007 Tacoma 4 door 4 wheel drive V6. The check engine light comes on every morning after driving about 1.5 miles. When this happens the truck will not shift to overdrive. However after one st...

    2007 Toyota Tacoma 4WD

    -

    Maintenance & Repair

Search Toyota Tacoma Questions

Toyota Tacoma Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,040
#2 genxer36
genxer36
Reputation 340
#3 BURT100
BURT100
Reputation 330
View All

Related Models For Sale

Used Ford F-150
2,144 Great Deals out of 193,917 listings starting at $290
Used Nissan Frontier
341 Great Deals out of 21,129 listings starting at $1,250
Used Toyota 4Runner
235 Great Deals out of 19,523 listings starting at $1,500
Used GMC Sierra 1500
778 Great Deals out of 68,743 listings starting at $1,800
Used Ford Ranger
173 Great Deals out of 5,596 listings starting at $900
Used Jeep Wrangler
268 Great Deals out of 15,899 listings starting at $3,200
Used Dodge Ram 1500
418 Great Deals out of 10,969 listings starting at $1,000

Used Cars For Sale

2017 Toyota Tacoma For Sale
13 Great Deals out of 25,826 listings starting at $14,995
2016 Toyota Tacoma For Sale
79 Great Deals out of 2,697 listings starting at $16,990
2015 Toyota Tacoma For Sale
70 Great Deals out of 3,031 listings starting at $13,995
2014 Toyota Tacoma For Sale
46 Great Deals out of 1,933 listings starting at $8,850
2013 Toyota Tacoma For Sale
67 Great Deals out of 2,075 listings starting at $6,495

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.