Jump to content


Photo

RS Turbo problem, one for the knowledgable!


28 replies to this topic

#1 dansGTI

dansGTI
  • Gender:Male

Posted 10 January 2008 - 10:03 PM

Right, although i asked before, ive had a good look at my poor old mk3......................

It seems that it has had a Series 2 engine installed, but the previous owner decided it would be a good idea to leave the original mk3 xr3i loom in........

Things i found:

1) wastegate solenoid has no wires connected to it
2) the wastegate solenoid has 2 hoses connected to it, but has a nipple for a 3rd which has NOTHING connected to it
3) pipe from side of water pipe is blocked off (main feed pipe is connected though)
4) there is a small pipe on the side of the metering head which is blocked off also
5) the cold start injector has been wired direct to the battery and to a switch on the dash (!?!?)
6) fan has been messed with - it has a direct earth from battery and the live feed has been spliced into the feed from the thermostat

No idea what to do now!!

The loom is connected to an early S2 ECU, but no idea if the black ECU is correct.

#2 Stu

Stu
  • Gender:Male
  • Location:Button Moon
  • Drives:People Crazy...... Likes: DnB, Pussy....... Dislikes: Wind, Farmers... Position: Wheelbarrow...

Posted 10 January 2008 - 10:07 PM

1/2/3 is fine
4, take a photo
5, as i said before, not right or proper, most likely a hack due to someone not being able to set up the KE properly
6, just re-wire as per wiring diagram.

What colour sticker is on the black fuel ecu? and what is the ignition ecu? (black/red/blue? hearts diamonds?)
500 for me to clear my inbox

#3 ScORTED

ScORTED
  • Drives:in a straight line sometimes

Posted 10 January 2008 - 11:05 PM

re: 4 its probably the other pipe to the amal valve

is it this one? if so it should be blanked off
Posted Image
Likes: Cheap insurance, track weapons, sleepers, proper handling, proper food, computers and technology, engineering, running, ford RS models, contact sports, motorsports, track days, The Stig

Dislikes: Fuel prices, whingers, harsh suspension, yUUf culture, being sheep, hard parked/ over slammed cars, VW beetles, prius and other hybrids, diesel cars (tractors), horses on the road and pikeys in general

ScORTED 2005-2012

#4 dansGTI

dansGTI
  • Gender:Male

Posted 10 January 2008 - 11:11 PM

Ignition ECU is like you said before, an early S2. NOT hearts and diamonds.

The fuel ECU has a gold coloured sticker on it, with the numbers 0280800194 / 810 / v86ab12a297ba on it.

Looking at the wiring diagram it shows many sensors and things wired differently (inlcluding the thermostat wiring and fan wiring) the difference seems to be the earth and feed are opposite.

I do have the plug on the loom for the cold start, so im going to re-connect this.

So, the loom could be okay??







re: 4 its probably the other pipe to the amal valve

is it this one? if so it should be blanked off
Posted Image


Thats the one! Cheers

#5 ScORTED

ScORTED
  • Drives:in a straight line sometimes

Posted 10 January 2008 - 11:25 PM

often people have problems with flood from the cold start valve so disconnect it - not personally heard of it being wired to manual.
Likes: Cheap insurance, track weapons, sleepers, proper handling, proper food, computers and technology, engineering, running, ford RS models, contact sports, motorsports, track days, The Stig

Dislikes: Fuel prices, whingers, harsh suspension, yUUf culture, being sheep, hard parked/ over slammed cars, VW beetles, prius and other hybrids, diesel cars (tractors), horses on the road and pikeys in general

ScORTED 2005-2012

#6 Stu

Stu
  • Gender:Male
  • Location:Button Moon
  • Drives:People Crazy...... Likes: DnB, Pussy....... Dislikes: Wind, Farmers... Position: Wheelbarrow...

Posted 10 January 2008 - 11:34 PM

often people have problems with flood from the cold start valve so disconnect it - not personally heard of it being wired to manual.


This is what happens when you press the button..

Posted Image
500 for me to clear my inbox

#7 dansGTI

dansGTI
  • Gender:Male

Posted 11 January 2008 - 12:35 AM

often people have problems with flood from the cold start valve so disconnect it - not personally heard of it being wired to manual.


I heard that too, and that if it definitely needs the cold start valve to start, then the engine is not in the best shape............... (??)

Can somebody shed any light on whether i have the correct fuel ECU?

#8 dansGTI

dansGTI
  • Gender:Male

Posted 11 January 2008 - 12:46 AM

Really need help with this, somebody must be able to offer advice. This is way out of my league. I have searched the net everywhere for some idea, and ive stared at wiring diagrams and still no use.

Is the XR3i loom okay or not? and what do i need to do :nutter:

#9 ScORTED

ScORTED
  • Drives:in a straight line sometimes

Posted 11 January 2008 - 12:46 AM

some don't start well with it pluged in, however i saw sime's recent build professionally setup car and it took him a good 3 or 4 mins! :O of cranking to sart it without the cold start valve attached, same thing with the one we just bought, however with the valve plugged back in it starts on the button
Likes: Cheap insurance, track weapons, sleepers, proper handling, proper food, computers and technology, engineering, running, ford RS models, contact sports, motorsports, track days, The Stig

Dislikes: Fuel prices, whingers, harsh suspension, yUUf culture, being sheep, hard parked/ over slammed cars, VW beetles, prius and other hybrids, diesel cars (tractors), horses on the road and pikeys in general

ScORTED 2005-2012

#10 turbosy

turbosy
  • Gender:Male
  • Location:Sunny!? Blackpool
  • Drives:Nowt!!

Posted 11 January 2008 - 10:41 AM

How do you know its a XR3i loom?? A RS Turbo loom is different, the 3i loom doesn't have any ECUs so its either a proper RS Turbo loom or its got a "bodged" under bonnet/ECU loom. What dash is in it? MK3 or MK4?

The fuel ECU should be ok, i think u can use either Series 1/early Series 2 or the late Series 2. I'm not sure of the numbers but the series 1 fuel ECU has a blue Bosch sticker, the series 2s have a green sticker.

The little pipe, on the side of the metering unit, comes from the anal, sorry, amal valve!

As for the cold start valve, well it supposed to give it extra fuel when cold to aid starting. It sounds like its been used as a fifth injector on a manual switch, there is a kit, by Motorsport Developments, that plugs in between the Ford plug and the CSV, and is used a fifth injector & a CSV. Plug the Ford plug in, see if its ok, it might just need a good set up!!

#11 fonfe

fonfe
  • Gender:Male
  • Location:bucks
  • Drives:escort mk4

Posted 11 January 2008 - 01:12 PM

personally if the wiring is such a mess and the conversion is bodged as it seems to be and the engine is knackerd......
rip it all out, rebuild the engine and put it all back in properly then you have a job well done with no more worries :thumb:
Resident mechanic at the RS shop ;)
Www.Rsshop.com.au

Driving my rs2000'd mk4 +130spec'd mk4+ RST'd mk5 + mk4 cortina!

#12 racetechturbo

racetechturbo
  • Gender:Male
  • Location:norfuck
  • Drives:escort gti

Posted 11 January 2008 - 01:56 PM

change teh loom, , its an afternoons work easy, just remember wherethe earths meet

a 3i loom may aswell be a motorbike loom and its got nowt that will be any good to an rs turbo


you could make a new engine loom like you would for an xr2 or summet but betetr off with a good loom in the 1st place

the cold start if prob bein used as a 5th injector too for top speed thrashes
if runninf a bleed valve them the amel and all its pipework does nowt (depending how you set it up, i usually keep it in the loop just cos its tidier) thast loads of pipes stopping everywhere

#13 Stu

Stu
  • Gender:Male
  • Location:Button Moon
  • Drives:People Crazy...... Likes: DnB, Pussy....... Dislikes: Wind, Farmers... Position: Wheelbarrow...

Posted 11 January 2008 - 02:17 PM

The funny part is the cold start injector is completely useless as a 5th injector as it hardly supplies any fuel at all.

dan- if you're not confident in sorting it out yourself I personally would just trailer it to someone who'll do it all and suffer the cost.
500 for me to clear my inbox

#14 dansGTI

dansGTI
  • Gender:Male

Posted 11 January 2008 - 09:55 PM

Stu, you are definitely right, but im determined to get this rihgt myself. The respray will cost me enough, and all the other brand new bits im buying/bought. I think this is so confusing because it just seems a complete hash of several different looms or wrong coloured wires used to just get the car running. If the loom matched the wiring diagrams i have then it would be fine. Im just going to have to be patient and get a S1 loom.

#15 Stu

Stu
  • Gender:Male
  • Location:Button Moon
  • Drives:People Crazy...... Likes: DnB, Pussy....... Dislikes: Wind, Farmers... Position: Wheelbarrow...

Posted 11 January 2008 - 09:57 PM

Well if you want I could pop up with the relevant wiring diagrams..
500 for me to clear my inbox



Reply to this topic



  


0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users