Question about Cars & Trucks
I own a toyota corolla 1995 with check engine light on i checked it out with obd1 scanner it came out with code 21
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Posted on Jan 02, 2017
SOURCE: engine diagnostic codes
I don't have a dodge ram but the codes for the dodge vehicles where pretty much the same. For my intrepid the codes read for the following numbers
12 - Problem with battery connection (This usually happens if you disconnect the battery)
21 - Problem with the oxygen sensor circuit
52 - Oxygen Sensor signal input indicates rich mixture during engine operation.
It sounds like you may need to change an oxygen sensor. Hope this helps.
Posted on Oct 13, 2008
SOURCE: 2001 toyota corolla check engine
Mass Air Flow sensor! Just remove your air filter cover. Go to Auto Zone and purchase some solvent. Spray past the air filter and it should correct the problem. If not, replace the Mass air-flow sensor. This is commonly mistaken for an oxygen sensor. Mine did this and I followed these steps and it fixed the light. BTW, the light stayed on for 5 years before I fixed it. Never hurt anything. It's normally something to do with emissions. Dummy lights. :)
Posted on Mar 30, 2009
p0171 is lean condition bank one. you could have a vacuum leak a bad map sensor bad maf sensor clogged fuel filter low fuel pressure. start with the vacuum leak first.
Posted on May 05, 2009
The trouble areas associated with this code are as follows:
1)Gas leakage on exhaust system
3)Heated oxygen sensor
4)Three–way catalytic converter
The idea is to check for exhaust leaks first then the front sensor and rear sensor. If these all check out then the cat needs to be replaced.
Hope this helps. Thanks for using fixYa
Posted on Nov 06, 2009
My 2002 Camry V6 is having some issues. Went in for an oil change that turned into a front struts, springs and mounts job. Then I was having some problem in the higher speeds waiting for the car to shift, so had a tune up done, which meant new spark plugs, and of course, the gasket! So now I am out about 1K and now the check engine light comes on. Had it checked out and and a catalytic code came up. They fiddled with it and got the check engine light off, but now the VSC and TRAC OFF lights are on. What does all this mean? Should I take the plunge and get the cat converter done now?
Posted on Aug 18, 2010
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