[frenk]

Gentlemen

Probably we discussed this issue already. In my car it began about last October/November after 120,000 km. Ignition was never a problem whatsoever. Battery is fine, fuel is Shell V-Power 100, only. After a refuel with one dash of top off the engine would not start immediately. It required several attempts while the engine went out 2-3 times. It requires a  good push of the gas pedal to keep it running. After that the problem disappears completely until the next refuel. So it is related to refueling.

In December the 6th service was done properly. Petrol cleaner, change of fuel filter and spark plugs. What was initially believed to be gone is back again: no good start after refuel. I abstained from topping off, left the cover open while paying at the cashier, to no avail. The issue persists.

Some people on the internet speculated about a clogged vapour valve in the tank. I have no clue. The master mechanic identified the rich fuel mix of the Revo map as culprit and pointed to the soot on the spark plugs. But this explanation cannot be true since bad ignition occurs only after full refueling. Any suggestions?

Cheers, Frenk 😎

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Revo Stage 1 – JCR super low seating frame – Mishimoto gas pedal spacer – DSC sport controller

[9designs]

If you only 3/4 filled the tank at a fuel stop, does it still have the issue?

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[71-bda]

Frenk, next time you stop for fuel and you think it could happen again, open the bonnet and leave it open while you refuel and then when finished, start it with the bonnet open and see if it helps! if it starts ok, shut the bonnet and fook off !!

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No nothing.

No Mods. No rockers. Just a chunky knob.

No tackiness.

Std as Ford intended, but with a space saver wheel and jack and nuts and wheel brace. oh.. and flaps, a man has got to have flaps.

Innit?

 

[frenk]

Thanks for the suggestions chaps. I’ll try and report back soon.

On the other hand, from you experts I expect a complete causal chain and a mechanistic model 😉

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Revo Stage 1 – JCR super low seating frame – Mishimoto gas pedal spacer – DSC sport controller

[faber]

I had the same concern from time to time I was resigned to refuel half of the tank to no longer have to worry. I was advised to switch to colder candles problem solved.

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[GM]

@frenk might be a real long shot, but the DSC replaces you fuel level controller…. Just check its firmly in place with the plug secure ? As i said purely a long shot, but me being me i would visit anything I’ve changed also, just incase..

Also at your mileage would be great to drop off your intake manifold and have a look at what sort of build up its there from the DI. Mine was quite bad surprising low mileage and very few short trips 🧐

[frenk]

Cheers guys.

We have a couple of valuable suggestions now. Not all are strictly related to the very moment after filling her up, but are worth an investigation. What came to mind is my use of always the same petrol pump at the same station. The petrol quality or the station tank cleanliness might have changed. Might be worth testing either the next pump with 95 RON or another brand altogether, possibly 98 RON since Shell is the only one offering 100 RON hereabouts. Another possibility would be the consumed activated-charcoal filter. But yet again, I would expect misfiring all the time and the error code P0441 which is not the case.

I’ll let you know 😎

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Revo Stage 1 – JCR super low seating frame – Mishimoto gas pedal spacer – DSC sport controller

[frenk]

One more remark:

A colleague at work mentioned a TV report from Germany. The ADAC has reported several cases where automatic start/stop failed on red lights. Apparently, the induction loop in the tarmac underneath the car caused enough signal disruption that cars wouldn’t start anymore.

Very interesting… 🤔

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Revo Stage 1 – JCR super low seating frame – Mishimoto gas pedal spacer – DSC sport controller

[frenk]

Okay, filled her up at another petrol station, same Shell V-Power 100. Same fault 😕

After a 25 km drive the issue was gone. Engine started normally. Back-of-the-envelope this makes about 2 litre below full. Keep in mind when refilling.

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Revo Stage 1 – JCR super low seating frame – Mishimoto gas pedal spacer – DSC sport controller

[frenk]

I made 100 km and consumed about 9.5 litre. I filled in exactly 7.0 litre. Issue is gone! This is a viable solution.

The tank now was filled at “full minus 2.5 litre”. By “full” I mean the volume when the automatic pump nozzle shuts off.

Plausible explanation(s) anybody?

P.S. Swiss government gave a press conference today: home office mandatory, shops closed, pubs closed, until end of February…

Slàinte mhath 🤪

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Revo Stage 1 – JCR super low seating frame – Mishimoto gas pedal spacer – DSC sport controller

[Author]

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