Has anyone had a slight flat spot in the lower revs in there 2002 C4s. My one felt to just have a bit of a flat spot at about 3000rpm. I just filled up with fuel the same day as I notice it so it may be bad fuel. The other question is do you know of any computer chips for the C4S and if so do they work. <img src="graemlins/beerchug.gif" border="0" alt="[cheers]" />
Discussion summary
YOUR RESEARCHC4s flat spot
1 matching discussions were examined; no attributable action/outcome evidence was detected. No consensus or repair conclusion is claimed.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Read captured repliesInsufficient extracted evidence does not mean there is no answer in the original discussions.
1 matching discussions · 3 captured posts examined · 0 partial discussions
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.
3 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: 20261026T190023Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
My experience is that chips work better with Turbo cars.
Welcome to the board, Hebo. Yes, there is a change as you go beyond 3000 rpm. This has been discussed previously. Noted only on slow acceleration, there is a power surge starting at about 3200 rpm.
This is a source reference. Confirm exact model applicability in the original material.
