Olsrey
Member
Registered: 13th Jan 07
Location: Bradford Drives: LET Vectra B
User status: Offline
|
Recently done the conversion and the engine is massively overfueling. I never got a fuel octane plug with the engine so could it be that?
|
Superlite Ltd.
Member
Registered: 9th Jan 07
User status: Offline
|
yes
|
Olsrey
Member
Registered: 13th Jan 07
Location: Bradford Drives: LET Vectra B
User status: Offline
|
Went to the scrappy today and the C25XE had been crushed so I got a selection of other fuel octane plugs. The one that seems to work best is a White 98 plug. Also replaced the lamba and it seems better. But its still overfueling a bit.
|
luke85
Member
Registered: 26th Nov 07
Location: Chesterfield
User status: Offline
|
Have you had it on a wideband to prove its overfuelling? The coolant temperature sensor is normally the cause if it is actually running rich
|
Olsrey
Member
Registered: 13th Jan 07
Location: Bradford Drives: LET Vectra B
User status: Offline
|
I don't need no fancy guage to tell me that the car is using WAY too much fuel  . You can smell it and the way the engine behaves is enough.
|
DAZ1985
Member
Registered: 3rd Sep 06
Location: Scholar Green, Cheshire
User status: Offline
|
Luke is right in what he says though
|
carnuts
Member
Registered: 28th Aug 05
Location: Hertfordshire
User status: Offline
|
i had this before was a weak spark from a lead broken down inside it done what you are saying stunk of fuel and just didnt run right but ran ok ish
wasnt an xe though
[Edited on 19-12-2007 by carnuts]
|
Olsrey
Member
Registered: 13th Jan 07
Location: Bradford Drives: LET Vectra B
User status: Offline
|
Its the exhuast fumes that stink of fuel, and its fine once you give it some but its just when idleing and trying to go slow. Going around asda carpark is impossible as it just judders to fuck and me look like a twat
|
carnuts
Member
Registered: 28th Aug 05
Location: Hertfordshire
User status: Offline
|
yeah mine stunk from the exhaust too mate cause it wasnt getting burnt properly so it was spitting it out
|
Olsrey
Member
Registered: 13th Jan 07
Location: Bradford Drives: LET Vectra B
User status: Offline
|
I've also used some other leads which I know to be good and it still does the same.
|
Richie
Member
Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline
|
Would normally be the coolant temp sensor or the AFM. Do you have an engine management light on?
|
Olsrey
Member
Registered: 13th Jan 07
Location: Bradford Drives: LET Vectra B
User status: Offline
|
Yes but thats another fault with the car as the EML flickers and my fault code reader just displays "ERROR!" when ever I try to connect to the ecu.
|
luke85
Member
Registered: 26th Nov 07
Location: Chesterfield
User status: Offline
|
Just because it smells of fuel and makes poor MPG doesnt mean its overfuelling. I think i saw your other thread about the flickering EM light.
The ECU light wiring is dead simple, theres +12V on one side of the bulb when the ignition is on and the other side goes to a brown wire with a blue stripe down to the drivers footwell. This wire just needs to be connected to earth to make the light come on.
The brown wire with blue stripe matches up to the same colour wire coming from the LET or XE ECU. Check its connected right and the insulation isnt broken and its touching earth
|
Olsrey
Member
Registered: 13th Jan 07
Location: Bradford Drives: LET Vectra B
User status: Offline
|
I'll check the wires tomorow but I'm sure they are good connections.
|
Richie
Member
Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline
|
quote:
Originally posted by Olsrey
Yes but thats another fault with the car as the EML flickers and my fault code reader just displays "ERROR!" when ever I try to connect to the ecu.
You've done a conversion I take it?
My guess the diagnostic plug isnt wired up correctly. You tried the paper clip test to see if that does / does not work?
|
Olsrey
Member
Registered: 13th Jan 07
Location: Bradford Drives: LET Vectra B
User status: Offline
|
Yes did it myself, had B3KAN help me with the wiring. Not done a paperclip test due to not knowing which pints to short out.
|
luke85
Member
Registered: 26th Nov 07
Location: Chesterfield
User status: Offline
|
Or
Depending on which plug you have. Thats if the wires to the ECU have been matched up colour for colour
[Edited on 19-12-2007 by luke85]
|
Olsrey
Member
Registered: 13th Jan 07
Location: Bradford Drives: LET Vectra B
User status: Offline
|
They have been, I have 3 wires left on the corsa loom, (red/white, black/blue, black/green). Is that as it should be?
|
Olsrey
Member
Registered: 13th Jan 07
Location: Bradford Drives: LET Vectra B
User status: Offline
|
Just done a paper clip test, but I need to shorten the video. How long would a typical test take to get all the flashes in?
|
mac1976
Member
Registered: 29th Dec 06
Location: tullibody , clackmannanshire
User status: Offline
|
m,ines was doing the same as yours mate with the em light and overfueling
it was a bad earth on the fuel rail and the air flow meter was shaged
|
Olsrey
Member
Registered: 13th Jan 07
Location: Bradford Drives: LET Vectra B
User status: Offline
|
Mine has the wrong ron plug on , thats my theory as to why it is overfueling and I've checked all earths.
|
