8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHRough idle when hot
Leading reported evidence
Adjust tune
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
Basically when cold the car has a predefind value for some sendors and then when warm its start adjusting the tune.
Leading evidence: 'Adjust tune' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Adjust tune' (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.
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
cap is tight, just did an oil change, pump is running.
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
Before you run after other things...do an e-gas calibration.
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 · 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: 20261026T181445Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi, my c4s is working fine when cold outside (our winters ~60s F
)) starts just fine, when cold keeps rpm a bit high for warm up and when warm drops to 700-800rpm. But when temps go above 90s F, if car is cold it starts and has low idle ~600rpm and working rough first 10-20sec and after works normal, if car is warm and sits for 30min when it starts it just dies most of the times, need to add some throttle for 10-20sec after works fine. Any idea what can cause such behavior, diagnostic did not throw any codes. Will appreciate any input.
Before you run after other things...do an e-gas calibration. Turn the ignition to ON (not start) and wait 60 seconds. Do not touch the accelerator pedal during this calibration. You should hear some whirring and clicking from the engine bay. Then turn the ignition OFF...and then start as normal.
it was happening same story when i got car end of last summer, but as it got colder and throughout the winter all was ok and now with high temp again same story
Put a scanner on it and check the maf voltage. Its having issues going fron open loop to close loop. Basically when cold the car has a predefind value for some sendors and then when warm its start adjusting the tune. U can also graph tps and idle air control. U should see something in the voltages when it goes closed loop
Bump. Did the OP ever resolve this issue??
My car is similar in that it idles great warm in the winter but now the temps are coming up the warm idle is a bit more "bumpy", doesn't die but isn't quite as smooth as a winter warm idle.
No idea when plugs and coils were done last so they are on the to-do list no matter what but thought i'd throw this out there. Thanks
'
This is a source reference. Confirm exact model applicability in the original material.
