Engine speeds B5244S2 flucuates at warm engine idle.

Post by **abscate** » 04 Dec 2021, 09:43

26% fuel trim. Way out.

Find any British car for Lucas wire harness smoke

Post by **RickHaleParker** » 04 Dec 2021, 10:28

mod64 wrote: 04 Dec 2021, 07:21 Not sure is smoke is available.

Google "DIY smoke machine" . Easy and cheap to make one and there are many ways to do so. The idea is to pump smoke into a system then look for the leaks.

mod64 · Post by **mod64** » 04 Dec 2021, 12:07

Thanks for the ‘Smoking’ advice.
One more question, a couple of months ago the EVAP system made an intermittent hard noise while idling the engine.
Is it maybe that the EVAP system has the leakage?

Post by **RickHaleParker** » 04 Dec 2021, 12:41

mod64 wrote: 04 Dec 2021, 12:07 Is it maybe that the EVAP system has the leakage?

Could be, the EVAP dumps the collected fuel into the intake manifold. Might be the hose between the Charcoal canister and the intake manifold.

The leak could be a lot of other places also. You can speculate till the cows come it but, you won't have an answer until you smoke the intake system and find the leak(s).

mod64 · Post by **mod64** » 04 Dec 2021, 12:57

yes, you’re right. I prefer to try the quick wins first , at the end there could be even more than 1 leakage …