Help issues with MAF Relocation.

[dirtysouth_msp]

I'm afraid that the spark plug non-fouler trick is going to be a waste of time. It is for the secondary O2 sensor (catalyst monitor). P0420 or P0421 (catalyst efficiency below threshold) is what the spark plug non-fouler trick is supposed to address. P0171 is detected by the primary (front, in manifold) O2 sensor. Using the non-fouler trick on the front O2 would screw everything up and make it think you are running even leaner...

 

[25FConv]

If that is the case then man am I glad I just read this b4 I went to put it in my car. I just drilled out the holes in the nonfouler and hooked everything up......Any Ideas on what I can do in teh mean time?

I'm afraid that the spark plug non-fouler trick is going to be a waste of time. It is for the secondary O2 sensor (catalyst monitor). P0420 or P0421 (catalyst efficiency below threshold) is what the spark plug non-fouler trick is supposed to address. P0171 is detected by the primary (front, in manifold) O2 sensor. Using the non-fouler trick on the front O2 would screw everything up and make it think you are running even leaner...

 

[Matthew1785]

But yes samething with mine I am using am OEM O2, but when I put it in it popped up the P0031.....So if that dont work I am just gonna get a Bosch O2 and splice the wires and soder them and cover it in heat shrink wrap......providing that its not the harness itself that may be messed up. Hopefully its not the "trail of tears, that leads to a new ECU"

do not buy a bosch apparently from what ken is telling me its better to just use OEM O2 sensors then ones from autozone. i pretty much wasted 94.00 on a bosch O2 sensor, and i now have to shell out another 120 for a new oem sensor...

can anyone give me discription what P0133 means... "02 sensor slow to react" thats all i get

 

[dirtysouth_msp]

do not buy a bosch apparently from what ken is telling me its better to just use OEM O2 sensors then ones from autozone. i pretty much wasted 94.00 on a bosch O2 sensor, and i now have to shell out another 120 for a new oem sensor...

can anyone give me discription what P0133 means... "02 sensor slow to react" thats all i get

o2 heater circuit (bank 1 sensor1) - low voltage

voltage is monitored by terminal 94 of ecu...

 

[Matthew1785]

i thought that was p0131

 

[dirtysouth_msp]

i thought that was p0131

Here ya go.

 

[Matthew1785]

so could a faulty voltage clamp cause this? would it be safe to assume if a soder broke off the wiring, which could cause it to come lose it could cause a CEL?

im trying to exhaust all my options then just go spend 120.00 for a new oem sensor

 

[Matthew1785]

Here ya go.

also isnt that for code p0031?

 

[dirtysouth_msp]

also isnt that for code p0031?

Oops, my bad, hold on a sec.

 

[25FConv]

So Like I said previously for s**** and giggles I tried doing the non-fouler issue to the primary sensor. Except I didnt drill through completely....I drilled it so the O2 sensor fits about 1/4" through the first non-fouler, and I screwed the second nonfouler over and put it in. I drove the car for about 1 hr on the highway. Runs like a charm.....I was granny driving for about 25 miles and then figured I would get on the throttle a lil bit. It still held up like a champ. When I got home...still no CEL....so I am pretty happy at this moment thinking all is well. I turn the car off for a minute....and jus to make sure and see if I am not daydreaming or something I turn the car back on to see a perfectly black gauge cluster.......(boom03) On pops the CEL....(uhm) so I run the OBD II scanner on it. Only the P0031 code popped back up. (confused) So I guess one down and one to go. I know life isnt that simple, so I am hoping its not a matter of time b4 it goes boom. Any one care to chime in....cause I am just hoping that I dont go boom.


Damn- Good looks on the heads up for the Bosch O2 Sensor. I was about to go buy it and splice them myself.(confused) So I guess I am gonna have to jump on the OEM Sensor from Autozone then.

Hey, so I talked to a mechanic about your P0133 and i looked it up. what he told me and what i looked up go hand in hand......here is what i got for you:

P0133 - HO2S Sensor Circuit Slow Response (HO2S-11) The HO2S monitor checks the HO2S sensor frequency and amplitude. If during testing, the frequency and amplitude were to fall below a calibrated limit, the code will set. Electrical:
Shorted/open wiring
PCM
Induction System:
MAF sensor (On 4-cylinder engines, if P0133 is present, this could be caused by a MAF issue - on 6- and 8-cylinder engines, this could only be a MAF issue if P0133 and P0153 are both present)
Inlet air leaks (unmetered air)
Fuel Concerns:
Poor fuel quality
Base Engine:
Exhaust leaks (upstream or near HO2S)
HO2S Concerns:
Contaminated HO2S sensor (contamination from the use of silicone-based cleaners and sealants, leaded fuel, excessive oil consumption, etc.)
Deteriorating HO2S sensor

Sure hold this helps you a lil bit work your car out good. Keep me posted on it. Thanks

Manny

 

[Matthew1785]

o2 heater circuit (bank 1 sensor1) - low voltage

voltage is monitored by terminal 94 of ecu...

also this code is for p0131


p0133 is for 02 sensor slow to react.. i question this because i do have or it looks to be exhaust spitting out the sides of the gasket of the exhaust manifold, not bad just little spots, but its been doing it for weeks now and i checked the bolts and they are as tight as i can get them... so i dont think it would cause something like that.

 

[Matthew1785]

So Like I said previously for s**** and giggles I tried doing the non-fouler issue to the primary sensor. Except I didnt drill through completely....I drilled it so the O2 sensor fits about 1/4" through the first non-fouler, and I screwed the second nonfouler over and put it in. I drove the car for about 1 hr on the highway. Runs like a charm.....I was granny driving for about 25 miles and then figured I would get on the throttle a lil bit. It still held up like a champ. When I got home...still no CEL....so I am pretty happy at this moment thinking all is well. I turn the car off for a minute....and jus to make sure and see if I am not daydreaming or something I turn the car back on to see a perfectly black gauge cluster.......(boom03) On pops the CEL....(uhm) so I run the OBD II scanner on it. Only the P0031 code popped back up. (confused) So I guess one down and one to go. I know life isnt that simple, so I am hoping its not a matter of time b4 it goes boom. Any one care to chime in....cause I am just hoping that I dont go boom.


Damn- Good looks on the heads up for the Bosch O2 Sensor. I was about to go buy it and splice them myself.(confused) So I guess I am gonna have to jump on the OEM Sensor from Autozone then.

Hey, so I talked to a mechanic about your P0133 and i looked it up. what he told me and what i looked up go hand in hand......here is what i got for you:

P0133 - HO2S Sensor Circuit Slow Response (HO2S-11) The HO2S monitor checks the HO2S sensor frequency and amplitude. If during testing, the frequency and amplitude were to fall below a calibrated limit, the code will set. Electrical:
Shorted/open wiring
PCM
Induction System:
MAF sensor (On 4-cylinder engines, if P0133 is present, this could be caused by a MAF issue - on 6- and 8-cylinder engines, this could only be a MAF issue if P0133 and P0153 are both present)
Inlet air leaks (unmetered air)
Fuel Concerns:
Poor fuel quality
Base Engine:
Exhaust leaks (upstream or near HO2S)
HO2S Concerns:
Contaminated HO2S sensor (contamination from the use of silicone-based cleaners and sealants, leaded fuel, excessive oil consumption, etc.)
Deteriorating HO2S sensor

Sure hold this helps you a lil bit work your car out good. Keep me posted on it. Thanks

Manny

I'm going to go out on a limb here and think it could possibly be bad gas.. on friday night i threw close to a full tank of gas from BP where i live..

i always run 93... when i was on my way to protege garage i figured since im here and have a little above a half tank of gas i could just fill up and get a car wash, well the gas station i went to was citgo.. thinkin ok they have decent gas, i filled up with 93 there.. went through the car wash, as soon as i came out thats when i popped a CEL.. but why would bad gas accomodate a P0171 that doesnt make sense to me..

As for the MAF its relocated.. if i put the MAF on the intake pipe i will stall its already been tried, but i guess it couldnt hurt to try it again..

 

[Matthew1785]

unmetered air ehy... if you thought you greddy type s BOV was venting unmetered air would it be possible to throw those codes? how do you know if your BOV is bad?

 

[25FConv]

unmetered air ehy... if you thought you greddy type s BOV was venting unmetered air would it be possible to throw those codes? how do you know if your BOV is bad?

I am with you on that one matthew. I got no clue. I am off to chekc see if my wires on the PCM or the O2 sensor are loose.

 

[25FConv]

I am with you on that one matthew. I got no clue. I am off to chekc see if my wires on the PCM or the O2 sensor are loose.

So I just checked the wires on the O2 sensor and the harness that the O2 sensor connects too..(shocked) ...wires are in there tight, nothing is lose. Its definitely starting to look like the ECU or PCM is the issue.....I might have fell victim to the "trail of tears that leads to a new ECU"(pissed)

Anyone in Hampton Roads, VA wanna meet up with me and let me swap ecu for 10 mins so see if that is actually the case?

 

[25FConv]

So this definitely isnt fun no more. I got a hold of an O2 Sensor from a junkyard. I am going to hook it up and see if OBD code P0031 doesnt show up. If that is the case then hands down it was the O2 sensor that was messed up and I will have to take that issue up with the gentleman I purchased it from. If not then its settled time for a new ECU. I am off to go check out what can be done I will post when I am done.(boom07)

 

[Matthew1785]

any updates? I will be drivng the car tonight to see if I throw the codes again I'm praying I don't but I'm 100% sure I will

this weekend I might try some MAF cleaner maybe it will clear the P0171 code that's if I throw it

as for the P0133 I'm still stumped as to what it could be... slow response??? that's all I get

yo dirtysouth got any ideas for the P0133 code?

 

[Witchdoktor]

Hmm, I dunno. I'm feeling extra generous today so here is a scanned image of the "Trail of Tears that ends with replacing the ecu", lol. No, seriously, this is the official diagnostic procedure for that code p0031 code.

Oh, by the way, you will need a good scanner to complete that diagnostic flow chart.

A+ post. I'd get my hands on a volt meter

 

[Matthew1785]

well I drove the car yesterday NO CEL

I must have driven 25-30 miles turned the car on and off 10-12 times so I'm praying it was a leak upstream in my maf

I also noticed while trying to tighten the nut on my BOV it won't completely tighten... is it not supposed to? or is a washer needed because I think that's where I could also be leaking... but my vac reads 20 inchs!

I don't get it. 25F when you tighten your BOV does the nut tighten where you can't tighten it anymore? is there a washer or something that I'm missing? we both have the same BOV. please let me know.

 

[25FConv]

well I drove the car yesterday NO CEL

I must have driven 25-30 miles turned the car on and off 10-12 times so I'm praying it was a leak upstream in my maf

I also noticed while trying to tighten the nut on my BOV it won't completely tighten... is it not supposed to? or is a washer needed because I think that's where I could also be leaking... but my vac reads 20 inchs!

I don't get it. 25F when you tighten your BOV does the nut tighten where you can't tighten it anymore? is there a washer or something that I'm missing? we both have the same BOV. please let me know.

Matthew, when I go on my lunch break I will run outside and check for you. Give me 45 mins. I think it does tighten though...about 75% sure on that.