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PSM, ABS, P0102 lights after replacing regulator

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5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHPSM, ABS, P0102 lights after replacing regulator

Leading reported evidence

Check direction of the maf based

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 · Original poster

I double checked the direction of the MAF based on pictures I found on the net and made sure the plug was clipped in firmly.

Original post Read captured discussion
PSM, ABS, P0102 lights after replacing regulator
Read full discussion summary

Leading evidence: 'Check direction of the maf based' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check direction of the maf based' (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.

Read captured replies

1 matching discussions · 5 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Reconnect after it

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

After it was reconnected and the car restarted, the PSM / ABS warning lights went out as I pulled away from the curb.

Original post Read captured discussion
PSM, ABS, P0102 lights after replacing regulator

Replace 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 · Original poster

I replaced the MAF sensor with a new one, cleared the code and nothing changed.

Original post Read captured discussion
PSM, ABS, P0102 lights after replacing regulator

Replace voltage regulator

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 · Original poster

I replaced the voltage regulator on my alternator last weekend.

Original post Read captured discussion
PSM, ABS, P0102 lights after replacing regulator

Check pins

Suggestion or failed attempt

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 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

Disconnect your MAF and check the pins on the harness side with key ON engine OFF.

Original post Read captured discussion
PSM, ABS, P0102 lights after replacing regulator
Frequently discussed actions (8)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Check direction of the maf based

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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 · Original poster

I double checked the direction of the MAF based on pictures I found on the net and made sure the plug was clipped in firmly.

Original post Read captured discussion
PSM, ABS, P0102 lights after replacing regulator

Check pins

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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

Disconnect your MAF and check the pins on the harness side with key ON engine OFF.

Original post Read captured discussion
PSM, ABS, P0102 lights after replacing regulator

Disconnect mass air flow sensor

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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

Disconnect your MAF and check the pins on the harness side with key ON engine OFF.

Original post Read captured discussion
PSM, ABS, P0102 lights after replacing regulator

Reconnect after it

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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

After it was reconnected and the car restarted, the PSM / ABS warning lights went out as I pulled away from the curb.

Original post Read captured discussion
PSM, ABS, P0102 lights after replacing regulator

Replace alternator, and it was

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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

I had the same after replacing my alternator, and it was because I left the MAF disconnected at the end of the job.

Original post Read captured discussion
PSM, ABS, P0102 lights after replacing regulator

Replace mass air flow sensor

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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 · Original poster

I replaced the MAF sensor with a new one, cleared the code and nothing changed.

Original post Read captured discussion
PSM, ABS, P0102 lights after replacing regulator

Replace voltage regulator

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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 · Original poster

I replaced the voltage regulator on my alternator last weekend.

Original post Read captured discussion
PSM, ABS, P0102 lights after replacing regulator

Test purposes

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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

I get the same lights and code when unplugging my MAF for testing purposes.

Original post Read captured discussion
PSM, ABS, P0102 lights after replacing regulator
Coverage and how to read this overview

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.

5 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 · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261026T081417Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I replaced the voltage regulator on my alternator last weekend. After I put everything back together and started the car I immediately got a error code indicating my PSM and ABS were not working. I drove the car around for a bit and then I got a check engine light. The check engine light code is P0102, MAF sensor low voltage. The car drives perfect. The voltage is reading 14 volts when running. I replaced the MAF sensor with a new one, cleared the code and nothing changed. Does anybody know what could be going on here? PS: I do have a K&N air intake if that makes any difference. I had it on before I did the work and did not have any check engine lights, beside low voltage.

POST 2Original post

this is a stupid question, but MAF sensor plug is in correctly? I get the same lights and code when unplugging my MAF for testing purposes.

POST 3 / ORIGINAL POSTEROriginal post

I believe it is plugged in correctly. I double checked the direction of the MAF based on pictures I found on the net and made sure the plug was clipped in firmly.

POST 4Original post

I had the same after replacing my alternator, and it was because I left the MAF disconnected at the end of the job. After it was reconnected and the car restarted, the PSM / ABS warning lights went out as I pulled away from the curb. I've had no issues in the 3 months afterwards.

POST 5Original post

Disconnect your MAF and check the pins on the harness side with key ON engine OFF. Pin 4: 5v Pin 2: 12v Pin 3: almost 0 ohm between pin 3 and ground

This is a source reference. Confirm exact model applicability in the original material.