conversion help (epic fuel problem) - Saxperience

mlawlan69 · 26th February 2013, 16:42

Wits end with it now to be honest basically fobbed off "its cammed" by someone I genuinely didn't expect that from, and after driving it all of 15.2 miles the car has used 10 litres of petrol.

As far as I can tell the return line is plumbed in correctly, and i have had a go at jigging the fpr pipe back where it should have been initially, there is no carbon canister set up on it, or atleast it isnt plumbed into the engine, which is where it gets interesting as i saw a quote on another forum by sandy who said without it, epic pressure can be put on the fuel lines, causing mental overfuelling.

After having the car on Bedford's machine all that came back was a map sensor, however we swapped that for a known working one to no avail.

Another thing to note is after leaving the car 2 days i came back opened the door and the smell of petrol is unbelieveable, so possibly a leak? Im not sure anymore and just need sone saxp 16vs help lol.

saxova · 26th February 2013, 17:04

I don't have a carbon canister or fuel return plumbed in and get still get brilliant MPG!

So yeah i'd be looking for a leak somewhere along the lines (literally).

mlawlan69 · 26th February 2013, 18:06

Just been out to take many photos and even a cheeky video, I did however notice my carbon canister piping was still there hidden underneath the ecu, so that is now plumbed in to the inlet, BUT I believe there is also a connector (brown iirc) but couldn't find it on my loom although the guy who did the conversion did say it wasn't on mk1 VTS looms, yet after everything I don't know how true that is.

I will upload the photos shortly but for now this is a video I got, notice the plooms of black smoke, and the smell of petrol was unbelievable, when I came back in my bird told me she had to close the window as the room stank!!!

https://www.youtube.com/watch?v=gYsg...e_gdata_player

welshpug · 26th February 2013, 18:27

sounds like its running on 2, check your plugs.

mlawlan69 · 26th February 2013, 18:28

Few more pictures of things I spotted earlier, particularly the random plug connected to nothing near the passenger headlight.

http://i.imgur.com/K6tIDC0.jpg

http://i.imgur.com/KilGgaF.jpg

http://i.imgur.com/W5uakSA.jpg

http://i.imgur.com/AfS49oY.jpg

http://i.imgur.com/MarehBH.jpg

mlawlan69 · 26th February 2013, 18:31

Plugs were checked on Friday with Marcus (bedford126) all 4 were coked and black as the night.

stevo67 · 26th February 2013, 18:36

Do you have your throttle position sensor plugged in mate?

dolby20 · 26th February 2013, 18:42

Pics dont work for me - just saying

mlawlan69 · 26th February 2013, 18:53

TPS is connected edited my previous post so hopefully people can click the pics, on my phone so not as easy to redo links

tillygti6 · 26th February 2013, 18:55

The vac hose to the carbon canister, wheres that going? If its not connected whats blanking the take off on the underside of the inlet?

What have you done fuel pump wise? And what have you done return Wise?
Whats from which car?

dolby20 · 26th February 2013, 18:55

Pics still not working for me - struggling to help - if i can!
Clicked the links - doesnt go anywhere!

tillygti6 · 26th February 2013, 18:55

The vac hose to the carbon canister, wheres that going? If its not connected whats blanking the take off on the underside of the inlet?

What have you done fuel pump wise? And what have you done return Wise?
Whats from which car?

mlawlan69 · 26th February 2013, 19:51

Quote:

Originally Posted by tillygti6

The vac hose to the carbon canister, wheres that going? If its not connected whats blanking the take off on the underside of the inlet?

What have you done fuel pump wise? And what have you done return Wise?
Whats from which car?

Carbon canister is now reconnected to inlet so no holes there,

I did nothing, i paid someone to do it, said someone is now ignoring calls/texts and im at a loss as to what else to try.

The fuel pump is my standard 1.4 fuel pump, the fpr under the bench was removed and now has just the vts fpr on the rail. The return line goes from fuel rail into the grommet on bulkhead, down passenger side of car and back to pump.

I don't know why photos aren't working, really annoying :@

Sophia_Bush · 26th February 2013, 19:54

that even with the exhaust doesn't sound to right, everything in the engine bay looks to be fine wouldn't worry on the canister as my mates one was disconnected and blocked didn't run a return line either mpg was good even with a s1 rallye box.

For it to be using that much fuel I want to say cam timing and fuel leak from somewhere. So what you will need to do to rule this out is passenger seat out carpet up check the lines there to the tank, then check under the car passenger rear fuel filter should be there check there to, then look under the black caps driver side rear under the bench thats where they connect to the pump.

If Marcus machine has ruled out pretty much all the sensors it will be something else, maybe the injectors are sticking a bit or the fpr is up the duff? either way let use know if you need any bits as I got a few bits here that may be able to help out

Sophia_Bush · 26th February 2013, 19:57

Quote:

Originally Posted by mlawlan69

Few more pictures of things I spotted earlier, particularly the random plug connected to nothing near the passenger headlight.

see if pics work

going to sound really stupid to but are the lambda sensors plugged in right way around?

mlawlan69 · 26th February 2013, 19:59

Cheers mate, problem is I don't know what I need haha. I will have another look tomorrow and get the seat out to check lines, its all OK at the pump as I have checked it.

Could cam timing mean he hasn't timed it up right or it is "cammed" as I was told, I had lots of work done to the engine before it was dropped in so he may have timed cams up wrong? Problem is he's now avoiding me so can't even talk to him :'(

mlawlan69 · 26th February 2013, 20:00

Only 1 lambda on the mk1 VTS mate and its plugged in. Have a brand new one, and also my old 1.4 known working to try, but half moved in with the Mrs and all my tools are at my mums

Sophia_Bush · 26th February 2013, 20:02

what work did you have done to the engine? did you have cams in again or is that what you was told? if cam timing is out will affect things but unsure if it make the engine a fuelaholic though.

If any of the lads up your way can change the injectors and fpr for you I will send what I got to you for postage if it helps you rule that out, ah ok mk1 vts engine what loom and ecu you running?

Tom5190 · 26th February 2013, 20:05

The loose plug near the rad is for the fan, you dont use it as a plug on a conversion some people use a few wires off it some dont. Aslong as the fan cuts in when it should dont worry about that plug.

Dont drive it at all with that much un-burnt fuel getting thrown out the exhaust you will wash it very quickly.

You have pm.

tillygti6 · 26th February 2013, 20:08

I would also be inclined to check the crank position sensor for shite stuck to it.
And as gav said the cam timing.

If the fuel stinks that bad its surely got to be a leak somewhere. But then a leak wouldnt neccesarily explain the rough running. Youd expect with a major leak the topend power would be to shite. But you say its lumpy as hell at low rpm?