fiestaturbo.com

[georgiocat]

Hello people. Story so far... a friend of mine owns an Escort mk4. At some point, and after seeing my conversion, he wanted to do the same transplant to his car. After some search, he found a so called, reputable garage...500 miles away from where we live, and drove the car to them to do the transplant. They did a full refurbish of the engine prior to install it to the car, new shells, piston springs, gaskets, etc etc. Problem was that the garage that did the transplant, had no auto electrician... so they tried to do the work with another electrician who obviously didn't know what he supposed to know, bodged the loom, connected the fuel pump to run continyously, had A LOT of corroded wires, "forgot" to supply the CO pot, running the engine with wrong wirring on the TPS, and some other nice things that I can write for days... it also "runs" on stock boost, with beige injectors, and has a Garrett T3 turbo. When he took it back after a fight with the garage, since they had it for 3 months almost and never finished it, he said that enough with that joke, I want my car back. Of course as you realise, they finished it in the fastest way they could,so he can have it, and now the car consumes petrol like it is a Volvo tractor, idles like f@@ck, stumbles at accelerating, some times when boost hits boost limit etc etc... When he took it back, I had a look and managed to fix most of the problems, I wirred a CO pot correctly, fixed the TPS wirring, installed a fuel pump relay to run the fuel pump from the ECU,unwrapped the loom to check for other faults etc etc. Car runs much more better now, boosts fine, he ordered a wideband to set it up, but my problem is that if it idles for some time it starts to hunt a bit. It is not missfiring, it sounds like it is going to turn off momentarily, but it comes back again. After 2-3 minutes it does it again and works fine too. I am thinking that perhaps the injectors are a bit bigger than what is needed and floods the engine at idle. I set the CO pot about where my setting is, I set up mine with a wideband, and did the same setting at my friends pot. It is a rough setting, when I made it a bit leaner it idled much much better but I didn't want to lean it more to avoid melting anything. I told him not to drive it till his wideband arrive and install it so we can set it up correctly, but it seems we are in the correct route. Is there any chance that the injectors could cause erratic idle, am I correct on thinking that way? Also... his rev counter reads the doupble revs as it should. As far as I have found on various schematics and on some forums, including this, I have found that EDIS sends another signal through another pin in case you have that problem. Anyone who tried it? I am gonna try it, I am just looking if anyone tried this before and succeeded.

[mikeymikeyp]

where to start lol beighes need a chip to run properlly ,the pin on the edis i think is the second from the left im sure its a green wire i had to do this to mine ,,
why didnt you just get a efi loom out of a 90 spec escort 1600efi

[georgiocat]

Lol... I said the same... where to start... loom is from an efi and did what needed to run on OFAC. They did the electric transplant... well, kind of... lol. If you keep in mind that the previous engine was carbed, the car didn't have even the correct fuses and relays installed to run on the first place... they did some work, but obviously not what needed.I measured the loom and tested it with the help of a schematic I have for OFAC and now it is correct. I just have the issue with idling which doing my head in, I want to solve it... I guess the injectors are the reason, if I think correctly, the amount of fuel injected is more when idling than needed and this causes instability. Perhaps with the chip it alters the duty cycle of the beiges compared to blues, and idles as it should. Any idea how much blues flow? I know that Bosch beiges flow 250cc...

[blackbeautyzetec]

You checked the wiring diagram?

I would pull it all out and check all the wires from the diagram and make sure all is well and go from there. Or make a new loom up

[georgiocat]

Cheers m8. Yeah, I have checked the wiring, it is ok now. Had some issues but I fixed them.

[blackbeautyzetec]

how did you get on with this?

[georgiocat]

Hello. I installed a wideband and judging from the readings, it overfuels. At full boost AFR is at 10 which is extremely rich. At idle, only when I lowered down fuel pressure, so that injectors would starve from fuel managed to make it adle as it should, but I lost all the mid throttle driveability. I see values of 17-18 AFR at cruise, and EGT climbs at around 900 degree, not safe. At full boost it shows around 12, but all these at 1.8 bar fuel pressure without vac... it is not safe, so I set it up at around 14.7-15 idleing, 13 at cruise and hits 10 AFR with fuel pressure at 2.5 bar. I definitely need blue injectors, if you let it idle for some minutes warm, it start to hunt like it is flooding.