8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHMass Air flow sensor
Leading reported evidence
Clean mass air flow sensor
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
I do not know of anyone that has successfully cleaned an MAF sensor.
Leading evidence: 'Clean mass air flow sensor' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check continuity or short' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Check for continuity or short to ground in the wiring harness from the DME.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
If it passes the vacuum check, looks like a new MAF.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
8 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 1 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261026T190023Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Anyone tried to clean their MAF? I got the following error codes P102 and P112 which has to do with the intake air temperature. I figure either the MAF is shot or it is really dirty. I flipped the butterfly and looked down into the throat and it was black (lots of carbon). I sprayed some carb cleaner in their per the instructions on the can and reset my check engine light. It came back on this morning. What's a MAF cost? Any other ideas? TIA
Thanks Loren. The error codes per AutoZone are P0102 VAF input low and P0112 is air intake temperature low. Sound like the MAF? I have a call into the dealer. <img border="0" title="" alt="[Frown]" src="frown.gif" />
Hmmm... my list says:
P0102 - Mass Air Flow Sensor - Below Lower Limit
Check for continuity or short to ground in the wiring harness from the DME.
1 Check wiring from MAF sensor to DME control module for continuity.
1. Remove connector of MAF sensor.
2. Connect special tool 9616 to wiring harness (DME control module connector).
3. Connect ohmmeter to special tool 9616, pin 17, and MAF sensor connector, pin 5. Display: 0 - 5 Ohms
If infinite Ohms is displayed, check wiring harness for chafing and pinching damage.
2 Check wiring from MAF sensor to DME control module for short to ground.
1. Remove connector of MAF sensor.
2. Connect special tool 9616 to wiring harness (DME control module connector).
3. Connect ohmmeter to special tool 9616, pin 17, and to ground, pin 6. Display: infinite Ohms
If 0 - 5 Ohms is displayed, check wiring for chafing and pinching damage.
3 Check wiring from MAF sensor to DME control module for short to B+.
1. Remove connector of MAF sensor.
2. Connect special tool 9616 to wiring harness IDME control module connector).
3. Connect voltmeter to special tool 9616, pin 17 (B+), and to ground, pin 6.
4. Switch on the ignition.
5. Display: 0 V
If battery voltage is displayed, check wiring harness for chafing and pinching damage.
------------------------------------------------------
P0112 - Intake Air Temperature Sensor - Below Lower Limit
Check temperature sensor in MAF. Check for continuity or short to ground in the wiring harness from the DME.
1 Check temperature sensor in MAF sensor.
1. Remove connector of MAF sensor.
2. Connect ohmmeter to MAF sensor pins 1 and 3. Display: 2.3 - 2.7 kOhms at 20 �C
2 Check wiring from DME control module to temperature sensor for continuity.
1. Remove connector of MAF sensor.
2. Connect special tool 9616 to wiring harness (DME control module connector).
3 Connect ohmmeter to special tool 9616, pin 15, and MAF sensor connector, pin 1.
Display: 0 - 5 Ohms.
If infinite Ohms is displayed, check wiring harness for chafing and pinching damage.
3 Check wiring from DME control module to temperature sensor for short to ground.
1 Remove connector of MAF sensor.
2 Connect special tool 9616 to wiring harness (DME control module connector).
3 Connect ohmmeter to special tool 9616, pin 15, and to ground, pin 6.
Display: infinite Ohms
If 0 - 5 Ohms is displayed, check wiring for chafing and pinching damage.
4 Check wiring from DME control module to temperature sensor for short to B+.
1 Remove connector of MAF sensor.
2 Connect special tool 9616 to wiring harness (DME control module connector).
3 Switch on the ignition.
4 Connect voltmeter to special tool 9616, pin 15 (B+), and to ground, pin 6.
Display: 0 V
If battery voltage is displayed, check wiring harness for chafing and pinching damage.
Sorry, sounds like a bad MAF... I've never seen a bad wiring harness.
John,
Question please: other than the check engine light what physical behaviour do you notice in the engine that could make you suspect it's a MAF problem?
Waz
996 C2 99
First, I want to thank Loren for all the time spent on providing help on not only my issues but all the others as well. I have many times searched the archives and found the answer to my question written by Loren. Thank you. <img border="0" alt="[cheers]" title="" src="graemlins/beerchug.gif" />
My symptoms include a rough idle when cold and when I press on the accelerator, it bogs down terribly. This morning it stalled as I was backing out of the garage. After it warms up, it runs like a scalded cat. (New O2 sensors completely fixed the hesitation problem)
I am sure that when I go out to get in it to drive home from work, it will run very rough until it warms up.
Dealer says likely MAF but wants to make sure there are no vacuum leaks on the intake as apparently this will casue the same fault code. If it passes the vacuum check, looks like a new MAF. Get this, the dealer has new MAF's in stock. <img border="0" title="" alt="[Wink]" src="wink.gif" />
