11 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHC2 3.4 cutting out at idle
Leading reported evidence
Disconnect but as you all know space is limited
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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Discussions that performed work without a confirmed outcome
1
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Performed · outcome unconfirmed · Original poster
From a quick look around the bay I can't see anything loose or disconnected but as you all know space is limited to really see much.
Leading evidence: 'Disconnect but as you all know space is limited' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check fuel pressure valve' (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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Performed · outcome unconfirmed · Original poster
It was causing hunting and the odd stall, since the new one was fitted the car ran really well.
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Performed · outcome unconfirmed · Original poster
Thanks guys, I had a faulty oil seperator replaced a few weeks ago.
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Performed · outcome unconfirmed · Original poster
I don't think the fuel filter was ever changed, I cleaned the idle control valve earlier this year and it was working fine.
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Performed · outcome unconfirmed · Original poster
It was causing hunting and the odd stall, since the new one was fitted the car ran really well.
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Suggestion
If they are original, it may make sense to just replace them all (with either OEM or mode modern vacuum hoses from Pelican), or you can try to hunt down the potential leak via a smoke test (aka light up a Cigar).
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.
11 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: 20261027T053112Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Have a bit of a problem.
Yesterday driving home I slowed at a junction and the engine just died, since then it won't idle at all, it just cuts out. To keep the engine running it needs to be reved.
When it's running it sounds fine, no nasty noises, sounds like it's running on all cylinders. No dash lights are on, I scanned it with a basic code reader and there are no codes logged.
All fluid levels are fine.
Anyone seen this before?
If it has cable throttle, the idle control valve may be acting up or it needs some cleaning. I would expect it at least to store a code though. A durametric will help in this case.
When was the last time the fuel filter was changed? Also need to check fuel pressure valve.
I don't think the fuel filter was ever changed, I cleaned the idle control valve earlier this year and it was working fine.
No codes stored at all but I don't have durametric.
If the engine is capable of revving, then probably not a fuel delivery problem. While the engine is running, try removing the oil filler pipe cap and see if the engine stumbles and runs badly. What I am thinking is that there is a vacuum leak somewhere. At revs the engine can overcome it, but at idle it won't and it just goes down and dies because the air/fuel ratio is just too lean. Common vacuum leaks - AOS, oil filler pipe, TB o-rings and seals, any of the vacuum hoses and canister on the top of the engine. Also, idle control valves can fail completely. Might swap it out with a new one and see if that works. Let us know how it goes.
Thanks guys, I had a faulty oil seperator replaced a few weeks ago.
It was causing hunting and the odd stall, since the new one was fitted the car ran really well.
From a quick look around the bay I can't see anything loose or disconnected but as you all know space is limited to really see much.
The hard vacuum lines are known to crack and leak with no visible clue that they are faulty. If they are original, it may make sense to just replace them all (with either OEM or mode modern vacuum hoses from Pelican), or you can try to hunt down the potential leak via a smoke test (aka light up a Cigar).
I'm thinking with the AOS replacement your oil filler pipe cracked, AOS line to the TB or intake plenum is leaking, vacuum hoses were left undone, something along those lines. I hate to say it and the possibilities are remote but it has happened...bad AOS, even brand new. Sounds like it is doing the same things it was doing prior to AOS replacement. Huh.
