Help - idle issues - LotusTalk - The Lotus Cars Community
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post #1 of 8 (permalink) Old 07-05-2019, 01:47 AM Thread Starter
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Help - idle issues

2007 Exige S, when hot the idle drops and the car turns off at a stop, however, starts right back up. pulling my hair trying to figure this one out. any recommendations as to what could be causing this?

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post #2 of 8 (permalink) Old 07-05-2019, 04:55 AM
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Any codes stored?

How do your coil packs and spark plugs look?

-Smoky
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post #3 of 8 (permalink) Old 07-06-2019, 09:59 PM
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all stock car?
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post #4 of 8 (permalink) Unread 07-19-2019, 02:19 PM Thread Starter
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Any codes stored?

How do your coil packs and spark plugs look?
All New and no codes
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post #5 of 8 (permalink) Unread 07-19-2019, 02:20 PM Thread Starter
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all stock car?
Stock
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post #6 of 8 (permalink) Unread 07-19-2019, 02:41 PM
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This is seems to be a common problem. Does it surge; ie, drop low in the RPM then try to recover then die? When this happens to me, I restart the car and it will idle perfectly. I have never found the solution but when I added multispark COPs, it seems to really help. Still will happen but not as frequently. I've talked to BOE and they have not been able to find a root cause but have also tried a couple of solutions that seemed to help. It acts like a vacuum leak but goes away right after starting. So, my best guess is that it is a sensor that starts giving erroneous data to the ECU. After restarting, the ECU uses a new value for the sensor and it is happy again. I just do not know the ECU code well enough to determine which sensor could cause this symptom.

Good luck and let us know if you find something that works for you.

Later,
Eldon
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post #7 of 8 (permalink) Unread 07-19-2019, 03:46 PM
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I had the same issue yesterday. Talked to @shinoo to get some advice. He told me to disconnect battery and let the car sit for awhile. Then reconnect the battery, start the car, and let it idle for 15 min. Then turn on AC and let it idle. Then drive the car for awhile, then come home and let it idle for like 15 min.

I did this and my stalling issue was resolved. I am still going to replace plugs and air filter but so far so good.

2007 Exige S - in the works...
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post #8 of 8 (permalink) Unread 07-19-2019, 04:33 PM
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My memory isn't the best, but I thought this was a well known/ documented issue with Exige's ?

Mine used to do it quite frequently and although I have Torque 300 tune it isn't as frequent, it still does happen...

Here is where my subjective opinion may or may not be validated. It seems that if I was on throttle or off throttle abruptly just prior to a stop it happens more often, isn't this phenomena a variation of idle hunt ?

If am just putting around it also happens sometimes so I contradict myself!

L O T U S
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