Planet-9

Fault code P2198

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Original source

1 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHFault code P2198

Leading reported evidence

Replace numbers

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
Disregard P1090, I had unplugged the MAF sensor to observe how it changes the numbers.
Original post Read captured discussion
Fault code P2198

Read full discussion summary

Leading evidence: 'Replace numbers' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace numbers' (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 · 1 captured posts examined · 1 partial discussions

Compare 2 other evidence results

Replace value

Suggestion or failed attempt

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
is making a change or a valve is opening or closing to change the value.
Original post Read captured discussion
Fault code P2198

Replace oxygen sensors

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 1
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that report an unsuccessful attempt: 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.

Unsuccessful attempt
I have changed both O2 sensors on bank 2 with no success.
Original post Read captured discussion
Fault code P2198
Outcome qualification: Negation, uncertainty or missing explicit repair resolution overrides the raw extraction signal.

Frequently discussed actions (3)

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

Replace numbers

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
Disregard P1090, I had unplugged the MAF sensor to observe how it changes the numbers.
Original post Read captured discussion
Fault code P2198

Replace oxygen sensors

No successful repair reported for this finding.

0
Reported fixes: 1
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that report an unsuccessful attempt: 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.

Unsuccessful attempt
I have changed both O2 sensors on bank 2 with no success.
Original post Read captured discussion
Fault code P2198
Outcome qualification: Negation, uncertainty or missing explicit repair resolution overrides the raw extraction signal.

Replace value

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
is making a change or a valve is opening or closing to change the value.
Original post Read captured discussion
Fault code P2198

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.

1 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Planet-9: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 1 adjusted by outcome qualification.

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

Generation: 20261026T212127Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

The code stands for Bank 2 Post Cat Fuel Trim Too Lean. I have changed both O2 sensors on bank 2 with no success. At 2000 RPM the funky reading are gone and everything looks good again. Check engine light always gets triggered at idle. The bank 1 post cat O2 sensor has very low voltage at idle. The voltage goes up to about equal with bank 2 at 2000 RPM. It feels like the DME is making a change or a valve is opening or closing to change the value. At the higher reading after 2000 RPM I never get a CEL. Could BANK 1 be the cause for code P2198 because a wrong reading from the maybe faulty bank 1 post cat O2 sensor is causing the DME to make the wrong adjustments? I don't think that bank 1 has an internal engine problem because sensor 1 on bank 1 should have alerted to that and it doesn't. Disregard P1090, I had unplugged the MAF sensor to observe how it changes the numbers. Below are the PIWIS reading. Is there anyone here who can determine what the problem is? https://cimg9.ibsrv.net/gimg/********.com-vbulletin/2000x1124/20231130_154129_f7be73b3668af7612b88f91a3fd6c3e02287467a.jpg https://cimg0.ibsrv.net/gimg/********.com-vbulletin/2000x1124/20231130_154322_9a8b5610689ee267cb2c533eadf801542fd4b8a0.jpg https://cimg1.ibsrv.net/gimg/********.com-vbulletin/2000x1124/20231130_162429_6e22f0eb4f348b688f3894a0b859e524075716fc.jpg https://cimg3.ibsrv.net/gimg/********.com-vbulletin/2000x1124/20231130_162526_7f512d0ab648e8781b692c9edf0e4f32c7963f09.jpg https://cimg4.ibsrv.net/gimg/********.com-vbulletin/2000x1124/20231130_162716_00a5cfe25263ee9a740ee13f8b4ab3167bc5a200.jpg https://cimg5.ibsrv.net/gimg/********.com-vbulletin/2000x1124/20231130_162904_437663ec720d1fbb51c6d66d9ec287bc14ae80ec.jpg https://cimg6.ibsrv.net/gimg/********.com-vbulletin/2000x1124/20231130_163019_dd5d158f19862bf7b71a3e7add223b45713a6ee3.jpg https://cimg7.ibsrv.net/gimg/********.com-vbulletin/2000x1124/20231130_163026_d0419827ca83ac423a3c848ef12bacedee3cda2f.jpg https://cimg9.ibsrv.net/gimg/********.com-vbulletin/2000x1124/20231130_163031_80e89a06e991e93584b1182a25fab3cac9dba8f9.jpg

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