Karlos G

iTrader: (4)

Just got my ECU back after having some extra outputs fitted, and something odd has happened to my fuelling!
At hot idle it's rich (11.8:1) and under light accel/cruise I was leaning right out (17.0:1) and jerking about like a kangaroo!! lol
I've checked my map and all settings, and nothing was changed by Phil who build it and added the outputs.
Going to check voltage to my fuel pump, but what else could it be, FPR maybe?
Car has been stood for a week.

Cheers!

benjaminsarmy

maybe he bridged a outlet by accident (over soldered)
maybe

Rick

with the absence of a fuel pressure gauge, take a look at your pw and compare with what they were before on an old log.

Rick

Karlos G

iTrader: (4)

Thats a good idea, will tell me whether it's the ECU changing the fuelling or low fuel pressure! Cheers Rick

Karlos G

iTrader: (4)

Just compared an old log at a few points where the MAP, RPM and CLT are the same and the PW is within 0.4 of what the new log is (trimmed a little fuel out since then it's quite an old log) which is close enough and would not explain the AFR going as lean as it has so that points to a problem with fuel pressure!

I'll run two fresh wires direct to the fuel pump tomorrow as it is still on the original 20 year old wiring and see what happens, if not then maybe FPR.

Fucking ball ache two days before the Pod!!

rsmark86

iTrader: (3)

are you going karlos as ive already got the time off work ... but im only going to watch

Ford RS Enthusiast

a bit off topic but do you have to pay to watch at the pod ?

rsmark86

iTrader: (3)

just the 10 or 15 to get in mate....

but there is alot of car clubs attending this one on the 24th

Karlos G

iTrader: (4)

Well I was.... but now I have a fuelling problem and it's pissing down with rain here so I cant even get out there and try and sort it out
Mind you if the weather is shit tomorrow as well there's no point going anyway, dont want my first and only 3 runs at the pod to be in the wet

Karlos G

iTrader: (4)

13.6v at the fuel pump no fluctuations, so FPR or injector wiring i'm thinking now.....

rsmark86

iTrader: (3)

ok mate well im just going up to see how the others perform and project rs told me to bring my bash hat as hes gunna take me for a run lol

Karlos G

iTrader: (4)

Enjoy mate!
Still no joy with mine, just tried another FPR and double checked the wiring for the injectors, still the same

I'm going to adjust the fuel map to compensate and see what happens, but I shouldnt have to as it was perfect till I sent the ECU away

rsmark86

iTrader: (3)

just do what you can mate...

might be worth coming even if you dont run the car .... be nice for everyone to meet up

Karlos G

iTrader: (4)

Yeah it's really weird the fuelling is behaving like I've just changed injectors or something?!
Cant really be arsed to drive 2 hours if I'm not running TBH, bit of a mission.

rsmark86

iTrader: (3)

i suppose mate but im gunna go as i want to speak to crazycage and project rs and see there cars....

plus its going to be a big day ive hears that the following are going

scooby net
fiat coupe forum
passionford
berkshire modified
and a few others