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code 22,23,33

   
Old Mar 12, 2007 | 04:11 PM
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Default code 22,23,33
the check engine light came on so i bought the obd1 or whatever its called. and it gave the code 12,22,23,33 i replaced the MAF sensor but it is still giving me the same codes...........why?
 
Old Mar 12, 2007 | 04:28 PM
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Default RE: code 22,23,33
Would be more helpful if you put your truck information in a signature and turned on signatures with posting...
 
Old Mar 12, 2007 | 04:49 PM
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Default RE: code 22,23,33
ok, sorry bout that. 1989 s-10 blazer 2.8 v6 4x4.
 
Old Mar 12, 2007 | 04:50 PM
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Default RE: code 22,23,33

did you clear the codes after you replaced the MAF?

DTC - 12 No distributor reference pulse (diagnostic test active)
DTC - 22 Throttle position sensor error (signal low)
DTC - 23 Intake air temp sensor error (low temp indicated)
DTC - 33 MAP sensor circuit error (signal high indicating low vacuum)

Looks like replacing the MAF was not the issue. Looks like you have vacuum leak for one. And possibly a bad TPS sensor.
 
Old Mar 12, 2007 | 04:50 PM
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Default RE: code 22,23,33
how do you clear the codes? unplug the neg?
 
Old Mar 12, 2007 | 04:55 PM
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Default RE: code 22,23,33
ORIGINAL: iceman1987

how do you clear the codes? unplug the neg?
Normally what I do is disconnect the power for 10 min, then start it up without touching the gas. Let it idel and warm up. Then see if the SES light comes on again.
 
Old Mar 12, 2007 | 05:01 PM
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Default RE: code 22,23,33
thanks, i will try that
 
Old Mar 12, 2007 | 05:05 PM
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Default RE: code 22,23,33
If the codes return ref. back to my first post. It has the list of each code you posted.

Good luck
 
Old Mar 12, 2007 | 05:08 PM
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Default RE: code 22,23,33
i have a question, is the MAP sensor the same as the MAF sensor?
 
Old Mar 12, 2007 | 05:36 PM
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Default RE: code 22,23,33
ORIGINAL: iceman1987

i have a question, is the MAP sensor the same as the MAF sensor?
No
MAF=airflow [Mass Air Flow]
MAP=airpressure(vacuum) [Manifold Absolute Pressure]

They take measurements at different places...
 

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