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Old 03-13-2006, 02:26 PM   #1 (permalink)
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here are the codes my truck is throwing! can anyone shed some light on them for me and tell me how to remedy them?
P0733
P1590
P0171
P0174
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Old 03-13-2006, 03:12 PM   #2 (permalink)
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I just bought a 2003 SE.
Is that code reader a good idea? I.E. to buy one for my truck?
And why isn't there a published list of these codes?
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Old 03-13-2006, 04:02 PM   #3 (permalink)
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its the maf sensor that is bad,

the 0734 give it away. the 0174 and 0171 are the lean codes/by 03 they pretty much fixed them. We dont see them on those models to be honest. Mostly misfire and secondary air and other codes.


If you want an explanation of codes try google,

anyway an explanation only gives you an idea. It doesnt give the answer. Usually the freeze frame data gives the pertinent info about when and where and at what time.

THe MAF goes for 147 if I am correct.
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Old 03-13-2006, 04:34 PM   #4 (permalink)
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lean code? how do i fix that? any idea?
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Old 03-13-2006, 06:08 PM   #5 (permalink)
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Drum the lean code and the 0734 is caused by the MAF going bad.

The MAF monitors air flow. If it messes up the computer will think either too much air is coming in or too little. It will actually adapt to the conditions and lean the fuel out. If it gets too bad a Lean code or 0174 or 0171 is set.

When you have replaced the MAF sensor you need to reset adaptions or else it will think its still bad.

The MAF sensor is located just after the airfilter. The large tube with a connector on it.
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Old 03-14-2006, 08:48 AM   #6 (permalink)
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Drum,
The good news is the Bosh MAF's are pretty cheap compared to many. I just replaced mine for about $140 plus shipping.
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Old 03-14-2006, 09:55 AM   #7 (permalink)
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if i replace it, will the computer notice and then i can turn the lights off by connecting the battery?
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Old 03-14-2006, 11:11 AM   #8 (permalink)
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I hope you get past, " IF I repalce it", you really need to replace it, terrible MPG, lack of power, will eat you up.
No, you have to have the CEL turned off by a scanner, sorry.
Mike
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Old 03-14-2006, 12:24 PM   #9 (permalink)
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will an OBD 2 scanner like at auto zone be able to do it...and are you 100 percent sure that is my problem? what if i bye it and thats not the problem?
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Old 03-14-2006, 01:00 PM   #10 (permalink)
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On your off road trip, you didn't happen to go near any water did you?

Just replace the MAF sensor just did it on my wifes 2000, as it was affecting how the transmission was shifting, and killing the gas mileage! At least they aren't $700 like the D1's! Oh and you might want to spend some coinage on a good code reader. Later.
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Old 03-14-2006, 05:08 PM   #11 (permalink)
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is there anywhere i can buy this MAF sensor and do the job myself?
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Old 03-14-2006, 06:14 PM   #12 (permalink)
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Drum its easy to replace, just take a screw driver and take off the clamp and then take the top of the air filter box.


By the way the 0734 is the fourth gear monitoring code. Basically the ECU read s the info from the MAF and then changes accordingly. If the MAF is bad, the ECU will overcompensate and change the gear changes as it is adaptive learning capability. Anyway as it gets too far out of wack the lite is tripped and you will feel hesitation and bad gas mileage.
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Old 03-14-2006, 07:34 PM   #13 (permalink)
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where can i buy the sensor?
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Old 03-15-2006, 03:42 AM   #14 (permalink)
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Rovers North, Atlantic British will have them.
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