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2003 C2 MAF and Fuel Trim Values

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8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

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YOUR RESEARCH2003 C2 MAF and Fuel Trim Values

Leading reported evidence

Set code

Suggestion or failed attempt

No successful repair reported for this finding.

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Unsuccessful attempts: 1
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Suggestion
The CEL set-point for fault code is +- 4% , so it's a LONG way from even setting a code.
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2003 C2 MAF and Fuel Trim Values

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Leading evidence: 'Set code' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Set code' (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.

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Set point

Suggestion or failed attempt

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Unsuccessful attempts: 1
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Suggestion
The CEL set-point for fault code is +- 4% , so it's a LONG way from even setting a code.
Original post Read captured discussion
2003 C2 MAF and Fuel Trim Values

Frequently discussed actions (2)

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Set code

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Suggestion
The CEL set-point for fault code is +- 4% , so it's a LONG way from even setting a code.
Original post Read captured discussion
2003 C2 MAF and Fuel Trim Values

Set point

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
The CEL set-point for fault code is +- 4% , so it's a LONG way from even setting a code.
Original post Read captured discussion
2003 C2 MAF and Fuel Trim Values

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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

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Generation: 20261026T200546Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Here are my MAF and fuel trim values at idle, fully warmed up. Are the RKAT values difference indicative of any issue? Thanks in advance.

POST 2Original post

What am I looking at and what does this tell us? I�ve seen the fuel trim thing mentioned a few times and wasn�t sure what the meaning of it was . Have 03 as well and I�ll post up my readings for comparison if it helps over the weekend.

POST 3Original post

Its my understanding u want to be at 1 so those numbers r pretty good. Flat 6 has a couple youtube vids on fuel curves. Im sure u can find them with a search.

POST 4 / ORIGINAL POSTEROriginal post

I found the Tony Callas videos - to me looks ok - but would like reassurance. My cam deviation numbers -1.94 and -0.48. Not bad at all.

POST 5Original post

Quotes source post: 17318349

Looks very good, all values should be near 1.00 except Rkat which should be near 0%

POST 6 / ORIGINAL POSTEROriginal post

Quotes source post: 17318518

Does the bank 2 RKAT being near 1 indicate anything specific to look into for bank 2? Or is 1% (0.94) for bank 2 vs 0.09 for bank 1 totally miniscule and not worth concern?

POST 7Original post

Quotes source post: 17318542

I would not be concerned, it's only 1% from ideal on bank 2 .Maybe the injectors are slightly dirty, run some Sea Foam through it and see if it gets closer to Ideal. The CEL set-point for fault code is +- 4% , so it's a LONG way from even setting a code.

POST 8 / ORIGINAL POSTEROriginal post

Thanks Skip. Much appreciated.

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