P0175 и p0172 ошибки на мерседес

post #1 of 25Old05-28-2008, 05:29 PMThread Starter
 
 
Location: Murfreesboro, TN

User is: BigBird03 is offline
MAFS.Throwing Codes P0172 P0175?

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Please bare with me.I was wondering if anyone else has had any problem with their stock MAFS???? and throwing codes p0172 and p0175.mine has been messed up for about a year and just unplugged it.but also have put on tech 2 scanner and said it was MAFS.I tried to erase it.but still SES light still popped up p0175 и p0172 ошибки на мерседес now few days ago I bought a new MAFS and the guy at autozone clear the code and popped back on 20 mins later.took to my father in law and put it on the tech 2 scanner and said everything was reading fine and ran better and just cleared it again.but still popped on again.however I went to two different autozones and now its pulling up codes P0172 and P0175 bank 1 and bank 2.guy printed out a list of problems for the codes.guy suggested that o2 sensors or a fuel injection running too lean or rich.but both codes also suggest the MAFS is bad.do I have to drive a couple hundred miles to clear itself even though it was cleared through the scanner and popped back on.please someone help me on p0175 и p0172 ошибки на мерседес feedback is appreciated.I also have an AEM intake.would this cause a prolem?




03' yellow w/ white stripes S10, ZQ8 suspension, dual exhaust with flowmaster 40 series, AEM Brute Force Intake, Cowl Hood, 5% tint wrap around, clear headlights with HIDs 8000k, Clear Corners, Street Scene P0175 и p0172 ошибки на мерседес Vu Mirrors, 1 12" 9500 MTX Superwoofer , MTX 600xd amp, Pioneer DEHP7800MP head unit.more to come
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post #2 of 25Old05-28-2008, 05:43 PM
 

User is: MikeInCtown is offline
Re: MAFS.Throwing Codes P0172 P0175?

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post #3 of 25Old05-28-2008, 06:40 PM
 
 

User is: AWOLMIND is offline
Re: MAFS.Throwing Codes P0172 P0175?

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Could be leaky intake gasket causing a false code. This happened on my dads truck a few years back. or it you could have a leak behind the MAF sensor.I.E.

a crack in the intake.

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post #4 of 25Old05-28-2008, 07:52 PM
 
 

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Re: MAFS.Throwing Codes P0172 P0175?

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Oiled intakes are probably the most common cause for screwing p0175 и p0172 ошибки на мерседес the MAF. Try cleaning the sensor, and if need be, replacing it.
I also have an AEM intake.would this cause a prolem?
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post #5 of 25Old05-29-2008, 09:27 AM
 
 

User is: SmokeeJay is offline
Re: MAFS.Throwing Codes P0172 P0175?

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My 97 P0175 и p0172 ошибки на мерседес kept throwing these same codes. The problem ended up being the "hat" on the top of the throttle body has a clip molded into it that holds it tightly onto the tb.

This clip was broken and the little hat would not seat properly.

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post #6 of 25Old05-29-2008, 05:27 PMThread Starter
 
 
Location: Murfreesboro, TN

User is: BigBird03 is offline
Re: MAFS.Throwing Codes P0172 P0175?

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I have a 2003.

03' yellow w/ white stripes S10, ZQ8 suspension, dual exhaust with flowmaster 40 series, AEM Brute Force Intake, Cowl Hood, 5% tint wrap around, clear headlights with HIDs 8000k, Clear Corners, Street Scene Cal Vu Mirrors, 1 12" 9500 MTX Superwoofer , MTX 600xd amp, Pioneer DEHP7800MP head unit.more to come
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post #7 of 25Old05-29-2008, 05:29 PMThread Starter
 
 
Location: Murfreesboro, TN

User is: BigBird03 is offline
Re: MAFS.Throwing Codes P0172 P0175?

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I have a DRYFLOW filter.it doesnt require any oil at all.i just bought a remanufactured MAFS 3 days ago.
Oiled intakes are probably the most common cause for screwing up the MAF.

Try cleaning the sensor, and if need be, replacing it.


03' yellow w/ white stripes S10, ZQ8 suspension, dual exhaust with flowmaster 40 series, AEM Brute Force Intake, Cowl Hood, 5% tint wrap around, clear headlights with HIDs 8000k, Clear Corners, Street Scene Cal Vu Mirrors, 1 12" 9500 MTX Superwoofer , MTX 600xd amp, Pioneer DEHP7800MP head unit.more to come
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post #8 of 25Old05-29-2008, 05:31 PMThread Starter
 
 
Location: Murfreesboro, TN

User is: BigBird03 is offline
Re: MAFS.Throwing Codes P0172 P0175?

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I have an aftermarket air intake with a dryflow filter (no oil).was the hat of yours stock? How do you fix it?
My 97 SS kept throwing these same codes. The problem ended up being the "hat" on the top of the throttle body has a clip molded into it that holds it tightly onto the tb. This clip was broken and the little hat would not seat properly.

03' yellow w/ white stripes S10, ZQ8 suspension, dual exhaust with flowmaster 40 series, AEM Brute Force Intake, Cowl Hood, 5% tint wrap around, clear headlights with HIDs 8000k, Clear Corners, Street Scene Cal Vu Mirrors, 1 12" 9500 MTX P0175 и p0172 ошибки на мерседес , MTX 600xd amp, Pioneer DEHP7800MP head unit.more to come
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post #9 of 25Old05-29-2008, 07:59 PM
 
 

User is: JAM w/HOT 4.3 is offline
Re: MAFS.Throwing Codes P0172 P0175?

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repalce maf. mine got so bad it started missin like hell. put on the JET preformance one was a waste of money by a new delco and slam it in

Jason
2001 s10 standerd cab ls 4.3 auto
k&n cold air,40 series flow,jet chip,clear corners,SS mirrors,mesh grill, 18" chrome pacers w/ 215/40 nittos, p0175 и p0172 ошибки на мерседес drop,march underdrives.
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post #10 of 25Old05-30-2008, 02:25 AM
 
 

User is: jakefiddlesticks is offline
Re: MAFS.Throwing Codes P0172 P0175?

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sounds like he was talking about where the plug was, so a wire connection issue. Or if it was a cracked sensor then that could let moisture get in which leads to corrosion and then a bad connection. You should check the wiring connections because MAF's rarely go out, it usually something else causing the code, like a bad connection.

I have a 02 4.3 in my truck with the cold air oil less intake filter and i haven't had any issues. The only way the oiled filters cause problems is if the oil from the filter goes onto the sensor. To do that you would have to spray way to much oil on the filter and who does that?

The 1st thing to do when you get a MAF code is check all wiring and then spray some electrical cleaner to clean it out real good. I have also seen dirt/debris clog p0175 и p0172 ошибки на мерседес MAF before.

But you would have to be in some serious dirty conditions with a poor filter system to get that. Try spraying the stock MAF out real good and checking the connections/wiring. If that works then take back the remanufactured one. If it doesn't get a brand new AC delco. If the Delco fixes the code then you had a bad MAF sensor which is rare. If it doesn't fix the code then you have a wiring/connection issue. Hope that helps.

I have an aftermarket air intake with a dryflow filter (no oil).was the hat of yours stock?

How do you fix it?


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post #11 of 25Old05-30-2008, 09:40 AM
 
 

User is: SmokeeJay is p0175 и p0172 ошибки на мерседес MAFS.Throwing Codes P0175 и p0172 ошибки на мерседес P0175?

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I had to get a new "hat". It just would not seat well enough to create a good vacuum.
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post #12 of 25Old05-30-2008, 02:30 PMThread Starter
 
 
Location: Murfreesboro, TN

User is: BigBird03 is offline
Re: MAFS.Throwing Codes P0172 P0175?

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When I had my old one me and my father in law took it out numerous times and cleaned it.sprayed and checked for build up on the wires.it ran like crap so i just unplugged it.and just 5 days ago I went to autozone and got p0175 и p0172 ошибки на мерседес remanufactured one(guy said once its installed i couldnt return it).it still throws the code but it runs alot better.the hat isnt cracked and the everything is fitting right.the plug in is fine.its not dropping on the scanner and father in law said everything is running like it suppose to.

i was given 2 printouts of these codes and what could be causing it.

could an exhaust leak .or running lean/rich .O2 sensor cause these p0175 и p0172 ошибки на мерседес codes.i've been told that i might have an exhaust leak now.or might be running lean/rich.

sounds like he was talking about where the plug was, so a wire connection issue. Or if it was a cracked sensor then that could let moisture get in which leads to corrosion and then a bad connection. You should check the wiring connections because MAF's rarely go out, it usually something else causing the code, like a bad connection. I have a 02 4.3 p0175 и p0172 ошибки на мерседес my truck with the cold air oil less intake filter and i haven't had any issues. The only way the oiled filters cause problems is if the oil from the filter goes onto the sensor.

To do that you would have to spray way to much oil on the filter and who does that? The 1st thing to do when you get a MAF code is check all wiring and then spray some electrical cleaner to clean it out real good. I have also seen dirt/debris clog a MAF before. But you would have to be in some serious dirty conditions with a poor filter system to get that.

Try spraying the stock MAF out real good and checking the connections/wiring.

p0175 и p0172 ошибки на мерседес

If that works then take back the remanufactured one. If it doesn't get a brand new AC delco. If the Delco fixes the code then you had a bad MAF sensor which is rare. If it doesn't fix the code then you have a wiring/connection issue. Hope that helps.


03' yellow w/ white stripes S10, ZQ8 suspension, dual exhaust with flowmaster 40 series, AEM Brute Force Intake, Cowl Hood, 5% tint wrap around, clear headlights with HIDs 8000k, Clear Corners, Street Scene Cal Vu Mirrors, 1 12" 9500 MTX Superwoofer , MTX 600xd amp, Pioneer DEHP7800MP head unit.more to come
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post #13 of 25Old05-30-2008, 04:10 PM
 
 

User is: jakefiddlesticks is offline
Re: MAFS.Throwing Codes P0172 P0175?

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you have 3 o2 sensors. One at either side of the 4.3 V6. 1,3,5 the p0175 и p0172 ошибки на мерседес side of the engine and 2,4,6 the left side of the engine.

the 3rd o2 is after the Y before the cat. Check the forum for the code it threw and see what bank code it is to find out if p0175 и p0172 ошибки на мерседес a o2 sensor tripping the ses light. Does your exhaust p0175 и p0172 ошибки на мерседес rich? if so a fouled o2 sensor will cause the PCM to dump more fuel. You also lose mpg with a bad o2 sensor.

The o2 sensors are very common to go out, the MAF is very rare to fail.

I also heard you can clamp a o2 sensor down and torch it for a few seconds to pick up a ohm reading. If the sensor is reading a wide range of certain ohms then it's good. If it's not reading the correct ohms, it's bad. I have no idea p0175 и p0172 ошибки на мерседес the ohm readings are, but if you where to test all 3 of them you could get a good idea of the average ohm reading.

Then you could replace one if it didn't match the other readings.

I heard you can spray wd40/carb cleaner to locate an exhaust leak near the engine. The engine will shift in rpm when you get close to the leak. I've never done it and i'm not sure if it works. I've always found my exhaust leaks from looking around for black exhaust stains or by listening. I had my headers leak really loud once on my 4.3 and it didn't throw a code.

Tell your father in law.if you have a ses light on the PCM has picked something up and it's not running like it's supposed to.

p0175 и p0172 ошибки на мерседес


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post #14 of 25Old05-30-2008, 04:13 PM
 
 

User is: 01cherryreds10 is offline
Re: MAFS.Throwing Codes P0172 P0175?

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Aren't all aftermarket intakes oiled, whether they give you the oil in a little bottle, or they come pre-oiled? Unless you buy a cheap eBay intake I would assume it would be an oiled filter no matter what.

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post #15 of 25Old05-30-2008, 06:52 PM
 
 
Location: Dickinson, TX (Houston)
Re: MAFS.Throwing Codes P0172 P0175?

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OK, it's not running lean. Both codes are for a rich p0175 и p0172 ошибки на мерседес - one is for bank 1 the other is bank 2.

It's not the MAF - you've replaced that.

It's not p0175 и p0172 ошибки на мерседес the O2 sensors - they p0175 и p0172 ошибки на мерседес go out in pairs at the same time.

It's prolly the MAP sensor. A bad MAP will cause a motor to run rich.

Put it on the scanner again and see how the MAP sensor readings look. Should be high vacuum at idle and low vacuum under load.


Last edited by Yogi; 05-30-2008 at 06:53 PM.
post #16 of 25Old05-31-2008, 11:30 AMThread Starter
 
 
Location: Murfreesboro, TN

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Re: MAFS.Throwing Codes P0172 P0175?

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Originally Posted by 01cherryreds10View Post
Aren't all aftermarket intakes oiled, whether they give you the p0175 и p0172 ошибки на мерседес in a little bottle, or they come pre-oiled?

Unless you buy a cheap eBay intake I would assume it would be an oiled filter no matter what.


NO.AEM has a DRYFLOW filter that if suppose to be more efficent at filtering.no oil is required or used what so ever.

03' yellow w/ white stripes S10, ZQ8 suspension, dual exhaust with flowmaster 40 series, AEM Brute Force Intake, Cowl Hood, 5% tint wrap around, clear headlights with HIDs 8000k, Clear Corners, Street Scene Cal Vu Mirrors, 1 12" 9500 MTX Superwoofer , MTX 600xd amp, Pioneer DEHP7800MP head unit.more to come
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post #17 of 25Old05-31-2008, p0175 и p0172 ошибки на мерседес AMThread Starter
 
 
Location: Murfreesboro, TN

User is: BigBird03 is offline
Re: MAFS.Throwing Codes P0172 P0175?

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ok.i believe one of my managers suggested the MAP.but I really hope that my original MAF was faulty.its was 110 bucks.could both MAP and MAf faulter together???? cause it runs much better now with the new MAF.


also.when i first start up my truck there is a loud kind deep ticking noise coming from the left side of the engine.but after 2 minutes or so it warms up and goes p0175 и p0172 ошибки на мерседес could this be????

This is why i was told it might be an exhaust leak.

OK, it's not running lean. Both codes are for a rich condition - one is for bank 1 the other is bank 2.

It's not the MAF - you've replaced that.

It's not likely the O2 sensors - they don't go out in pairs at the same time.

It's prolly the MAP sensor.

A bad MAP will cause a motor to run rich. Put it on the scanner again and see how the MAP sensor readings look.

Should be high vacuum at idle and low vacuum under load.


03' yellow w/ white stripes S10, ZQ8 suspension, dual exhaust with flowmaster 40 series, AEM Brute Force Intake, Cowl Hood, 5% tint wrap around, clear headlights with HIDs 8000k, Clear Corners, Street Scene Cal Vu Mirrors, 1 12" 9500 MTX Superwoofer , MTX 600xd amp, Pioneer DEHP7800MP head unit.more to come
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