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Fault codes - what to do?

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YOUR RESEARCHFault codes - what to do?

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Run errand, and the car

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Suggestion · Original poster

I needed to run an errand, and the car ran fine, and the idle was smooth and normal after the engine warmed up.

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Fault codes - what to do?
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Leading evidence: 'Run errand, and the car' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run errand, and the car' (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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Run errand, and the car

No successful repair reported for this finding.

0
Reported fixes
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Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
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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

I needed to run an errand, and the car ran fine, and the idle was smooth and normal after the engine warmed up.

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Fault codes - what to do?
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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.

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

  • Rennlist: 1 discussions

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POST 1 / ORIGINAL POSTEROriginal post

Today, after starting the car, I noticed the idle was rougher than usual, and the "Check Engine" light was on. I needed to run an errand, and the car ran fine, and the idle was smooth and normal after the engine warmed up. After I returned home, I hooked up my Durametric scanner and it came up with two fault codes, as follows: P0446 - Factory Fault Code 95 (Evap. Cannister shut off valve (function) P1109 - Unknown fault code 1109 This is for a 2003 X51 engine, DME 7.2, installed in a '99C4. I have driven the car for a year and 15,000 km since the engine transplant, and this is the first time the CEL went on and faults were found. Any suggestions as to how to proceed? Thanks. ...Rickker

POST 3Original post

P0446 EVAP Canister Shutoff Valve (Function) – Below Limit Possible causes: – Purge air line blocked – Flow resistance of EVAP canister too high P1109 does not come up on any of my lists. I would reset it and see if it comes back.

POST 4 / ORIGINAL POSTEROriginal post

Thanks redridge and Loren. I cleared the codes with the diagnostic tool. After clearing, the tool automatically checks for codes again. There were none. So far, so good. Then, before starting the engine, I removed the gas cap and inspected it and found no sign of any wear or deterioration in the seal area. Put in back on with 5 or 6 clicks, started the engine. The CEL did not come on. Since then, I have driven the car about 50 km, with numerous shut downs and startups. All appears to be well. So, maybe the gas cap was not seated properly, as redridge suggested. If the CEL comes on again at a later time, I will check out the cannister per Loren's advice. Thanks again for your help, guys. ...Rickker

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