Fuel smell, rough run

[gbtvr]

Hi folks,

Weird one,get a strong smell of fuel and a rough running that clears after 20 or 30 seconds and then does not return for hours....happened 3 times, twice after 5 ministers after start and third after 2 hours with no issues after it clears.

Any thoughts?

[Caddyshack]

My 205 gti with gti-6 engine did this and it was a faulty speed sensor on the gearbox, it told the engine to drop to an idle map setting.

[rev-erend]

Check connectors like the air flow meter.

[Classic Chim]

And ecu temp sender connection. If you have RG you can check it’s stable. Temp sensors do fail and have a similar effect.

[blitzracing]

Both of the above, or on the odd occasion there have been reports of shorts in the wiring loom that ground one bank of injectors- this holds them open and over fuels the engine, so worth having a good look at the loom for any chaffing on the insulation anywhere.

[Steve_D]

blitzracing said:

Both of the above, or on the odd occasion there have been reports of shorts in the wiring loom that ground one bank of injectors- this holds them open and over fuels the engine, so worth having a good look at the loom for any chaffing on the insulation anywhere.

Probably me reporting that the earth wire of number 2 injector was worn through and shorting to the bracket for the remote mounting of the ignition amplifier. As the injection is 'Bank Fire' that is shorting the whole bank.

Steve