fuel line components identifying help needed

[Andy wood]

Hi I need help identifying a part, there is a small filter looking assembly that has 1 pipe in and 1 out, it attaches to the top of the fuel filler neck and runs under the car to the front. It seem blocked as air will not go through this. Is this a filter or a valve for return on fuel from injection?

[big geoff]

i would say charcol canister

[Andy wood]

hi ,
I dont think its big enough. It is 5 cm high 3cm round

[SILICONEKID340HP]

big geoff said:

i would say charcol canister

Im wondering if it would be ok to loose the carbon canister and just leave the hose under the chassis.

Would the fuel evaporate and is there a danger element

Edited by SILICONEKID340HP on Thursday 31st May 22:04

[swallet]

I'd be worried about fuel fumes making their way into the interior or forming a pocket under the parked car.
I know it's unlikely.
What is the benefit of removing the canister anyway?

[slideways]

Andy wood said:

hi ,
I dont think its big enough. It is 5 cm high 3cm round

Sounds like a check valve have you removed it and blown down both ends?

[Bassfiend]

slideways said:

Andy wood said:

hi ,
I dont think its big enough. It is 5 cm high 3cm round

Sounds like a check valve have you removed it and blown down both ends?

+1

(...and thanks for the PayPal transfer - stuck up in Huby in Yorkshire with no phone signal or Internet until this morning so couldn't drop you a message back.)

Phil

[Andy wood]

Hi Phil,
Removed the valve and have fitted a filter temporarily, the tank is back in with the pump etc, does not seem to pressurize fully as the pump runs continuously. I think there may be another fault as it still will not run
Andy

[Bassfiend]

Andy wood said:

Hi Phil,
Removed the valve and have fitted a filter temporarily, the tank is back in with the pump etc, does not seem to pressurize fully as the pump runs continuously. I think there may be another fault as it still will not run
Andy

Fuel Pressure regulator? Could you temporarily clamp the return pipe back from the fuel rail to force the rail to pressurise and then try?

Phil

[Andy wood]

thats what I thought, going to block it later tonight

[Simon says]

If the pump runs continuously with just the ign on then someone as either put in an override or the fuel pump rely is knackered or the ECU is faulty the pump is supposed to run for a few seconds to pressurize the fuel rail then shut down when you have put the key into the ign on position (not cranking) then once the engine is running/started it then runs continuously, the fuel pump does not know/care if the FPR is working or not

[Bassfiend]

I know the ECU is good because it's my "spare" one.

Phil

[Simon says]

Bassfiend said:

I know the ECU is good because it's my "spare" one.

Phil

As this car got a spark etc? are the injectors actually firing?

[Bassfiend]

Simon says said:

Bassfiend said:

I know the ECU is good because it's my "spare" one.

Phil

As this car got a spark etc? are the injectors actually firing?

I'll let Andy grab that one.

Phil

[Andy wood]

there is a spark, you could hear fuel continuously running into the tank. This has been temporarily blocked, still does not fire, although fuel pump has stopped running all the time.

[Simon says]

Andy wood said:

there is a spark, you could hear fuel continuously running into the tank. This has been temporarily blocked, still does not fire, although fuel pump has stopped running all the time.

You need to check if the inj's are firing next then you may have lost the ign fed constant + 12v feed to them via a faulty fuse or relay.

Edited by Simon says on Saturday 2nd June 20:48

[Andy wood]

will look into that today Simon. I Think there may be multiple faults due to the tvr not running for 6 years. At least I know what it isnt!

[Simon says]

Andy wood said:

will look into that today Simon. I Think there may be multiple faults due to the tvr not running for 6 years. At least I know what it isnt!

Ah I see, this makes more sense now

[Andy wood]

yep, would be easier to just renew it all, maybe a 5.0 V8 complete with coil packs!

[Bassfiend]

In that case it would have been easier to have bought a runner...

Phil