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s1 vs s2 engine diferences

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Old 27-03-2007, 08:43 AM
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v6matt
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Default s1 vs s2 engine diferences

i put this engine in 6 months ago on me 3i conversion i still cant get it running properly its sounds like its missing and wont tick over ive changed everythin with known working stuff from fuel pump tp metering unit plugs to dizzy, ive even took the loom i put in and put a s1 loom in as it works better with all the sensors in the dash, but ive got s2 ecus and engine i heard it dont make a difference, ive checked for air leaks while its running and off i thing i thought was weird is the dizzys turned fully towards the car till it hits the bolt but if i turn it back it gets worse,

i know the ecu is chipped but another thing is theres sensors ie cold start etc i dont know which is what
this is a late s2 engine with s1 loom
theres a cold start valve i assume blue connector goes on this
theres one under browny colour is this thermo time switch
and theres another on the sanwich/manifold whats this
then there the aux air device which one goes on this?
then theres one on a water pipe with a round white conector
and theres a green knock sensor but havent got the wiring for it i hear s1 didnt have them also i dont have a amal valve yet just plumbed comp to act and wireing plugis just hanging.

sorry for the long essay but want to give as much info as i can,i cant get it anywhere its all resprayed and ive spent so much more than i wanted to i could of bought a mint s1 by now , but i wanted a project to do but now its getting to me now if anybody near leics has experience and has a idea i dont mind paying someone to come over its just i cant get it anywhere,this is my last push before it gets the axe through the bonnet lol

anyhelp gladly appreciated thanks in advance
Old 27-03-2007, 09:56 AM
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v6matt
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come on safechav where are u
Old 27-03-2007, 10:26 AM
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also just noticed that there is a green plug with 4 or 5 holes that a relay goes into and its located about 4 inches away from the fuel pump relay any idea what goes in this is it needed or is it central locking or something elec wind been goin through the haynes all morn and cant find anything

cheers again
Old 27-03-2007, 01:23 PM
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Originally Posted by v6matt
also just noticed that there is a green plug with 4 or 5 holes that a relay goes into and its located about 4 inches away from the fuel pump relay any idea what goes in this is it needed or is it central locking or something elec wind been goin through the haynes all morn and cant find anything

cheers again
just been through wiring diagrams and im missing a relay called "injection module relay 2" can this be bridged and if so how? im also fueling ok inc cold start valve so its not that im 99% sure any ideas chaps
Old 27-03-2007, 05:48 PM
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how fuckin hard can it be convert to a rs turbo ive changed every thing apart from the ecus im fed up of buying two of every thing its got a weak spark could this be down to the ecu ive looked at earths etc could someone please shed some light on it cheers
Old 27-03-2007, 05:51 PM
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welcome to the world of rs turbos mate
Old 27-03-2007, 05:54 PM
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Originally Posted by v6matt
Originally Posted by v6matt
also just noticed that there is a green plug with 4 or 5 holes that a relay goes into and its located about 4 inches away from the fuel pump relay any idea what goes in this is it needed or is it central locking or something elec wind been goin through the haynes all morn and cant find anything

cheers again
just been through wiring diagrams and im missing a relay called "injection module relay 2" can this be bridged and if so how? im also fueling ok inc cold start valve so its not that im 99% sure any ideas chaps
whatever you do dont and i mean dont bridge anything i mean anything i dine it with mine and it went on fire twice and i shat my pants i thouyght it was a gonner its not worth the hassle mate ask someone on here for the green relay
Old 27-03-2007, 06:06 PM
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SafeChav
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Theres next to no differences between the two engines in terms of getting them running.

What loom and ECU's are you using?

Chances are you probably have an air leak. Have you compression tested it?
Old 27-03-2007, 08:00 PM
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v6matt
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hi i know what u mean bout bridging them lol i just want to get it running half right on me drive then get it set up properly moted etc.

safechav the loom i originaly did was a s2 spliced in to the mk3 xr loom it is a s2 engine so has all the s2 sensors aswell as a silver ignition ecu hearts hash diamonds or whatever it is lol, but i took the front off it and it has a little pcb with a chip on it with wires onto the ecu board so im assuming its chipped and i thought i fooked up with the wireing so i bought a complete s1 loom and fitted that the only thing diferent is the fuel pump relay and this green socket next to it did all that and still the fookin same the only things i havent changed is the ecus and the engine,its fueling well the only thing im concerned about is where the multiplugs go if ive got one the wrong way round the haynes dont explain shit bout that but apart from tracing the coulors on the wiring diagram im stumped

on the manifold sandwich plate theres two sensors one a thermo time sw.and whats the otherand im assuming the thermo one is a brown sensor directly under cold start cheers again
Old 28-03-2007, 01:08 AM
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An engine fault i would say, or an air leak.

The green relay plug you don't need to worry about, thats for the ABS relay
Old 28-03-2007, 08:25 AM
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ok ill do a comp test il borrow a tester and ill check cam timing again thanks again
Old 28-03-2007, 09:30 AM
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safechav just a question did s1s have abs and ive looked it the haynes wireing thing at the back and the colours match op to that injection module 2, if you get 5 have a look i could be wrong,but it does seem to go to coil and jetronic box strange ill whipp rocker cover off and have a look aswell cheers
Old 28-03-2007, 01:13 PM
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ABS didn't exist on a Mk3 escort.

You saying you've got a green plug on a S1 loom?
Old 28-03-2007, 05:00 PM
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yep sure have and following the haynes stuff its a injection module 2 weird as fook if need be i can take a pic tis weird tho
Old 28-03-2007, 05:09 PM
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Ahhhhhhhhhhhhhhhh, ahhhhhhhhhh! True!

Think thats the injection module relay plug from what i remember! (ive not seen many proper s1 looms)

That IS important, without it the KE ECU will have no power supply and makes them a complete slut to start from cold.
Old 28-03-2007, 05:20 PM
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lol that explains things then becase if i heat plugs up with a blow torch for a bit it will fire and run but a right crock of shit dont suppose u or anyone knows the part no or can i just wire it up to ignition it has two red wires a brown and a black/green are these relays hard to get hold of,have a quick look if u got 5 mins looks like a simple relay but u would know better than me cheers again finaly getting some where
Old 28-03-2007, 05:25 PM
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You'd be best off gettin the proper jobby as its fused internally!

You can probably still get them from Ford!
Old 28-03-2007, 05:30 PM
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ill go ford first thing before i go work ill let u know the outcome thanks again cant wait woohoo lol
Old 28-03-2007, 05:37 PM
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Worst comes to worst there will be another way round it but its best to get the proper jobby if possible
Old 01-04-2007, 12:42 PM
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right m8 been out playing and took it for a quick spin its running but the onlyway to get it started is to us a blowtorch to heat the plugs up and its still missing slightly
the relay i mentioned ford lists 2 and there both 50 odd quid if i order it and its wrong tough shit on me if i need the other do u know another way round it?
i did a comp test a couple of times heres the results
1 95
2 117
3 115
4 115
these a bit low or is it my wanky comp tester? anotherthing whats wet testing and what part does it prove fooked?

one more question as im goin on a bit when i took it down the road the turbos spooling up but no boost shows nothing on the gauge and i cant feel anything either weird soon as i get ti sorted ill get it set up properly just want it half right any ideas appreciated cheers
Old 02-04-2007, 08:02 PM
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anyone please help
Old 02-04-2007, 10:18 PM
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Can't see there being 2 relays! I'll have a look on my microcat and get you a finis code.

Compressions are ok apart from that one which is a lil bit lower, may be early signs of something about to go, but without the relay you can't diagnose whether its mis-firing or not though, they do sound like they are missing when they run in limp home mode.

As i say, when you get that really it will more than likely start and run perfect
Old 02-04-2007, 11:20 PM
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ok thanks for that, if you can get me a code that would be sound, and the compressions when i got the engine i did replace head gasket cambelt just to be on safe side etc fingers crossed on the relay then thanks again
Old 03-04-2007, 12:49 AM
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did you do them hot or cold? Btw a wet test means squirting oil down the bores and repeating the test, if the rings are worn for example the oil helps increase compression, so you will be able to tell results.

Im looking for this relay an't find it now

gotta love microcat
Old 03-04-2007, 05:50 PM
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Originally Posted by SafeChav

Im looking for this relay an't find it now

gotta love microcat
sods law . it was a cold comp test ill have a bash tomoz with the wet test, do u just pour a cap full in and repeat? if so ill do it when ive finished and put up results thanks
Old 03-04-2007, 08:23 PM
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Have you had the cam/rockers off at any stage?

If you have make sure the thin spacer plate is under all the rocker posts. If one is missing it wil be holding the valve open resulting in a misfire/low compression.......worth a look.
Old 04-04-2007, 04:40 PM
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Originally Posted by v6matt
Originally Posted by SafeChav

Im looking for this relay an't find it now

gotta love microcat
sods law . it was a cold comp test ill have a bash tomoz with the wet test, do u just pour a cap full in and repeat? if so ill do it when ive finished and put up results thanks
usually a couple of squirts mate, a cap full will send the readings sky high!

Do a hot test first, before a wet one.
Old 04-04-2007, 08:50 PM
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moonie
no only took rocker cover off to have a quick look b4 i fitted engine

safe chav
ill have a go over bank holiday gonna spend a day on the heap of shit , ill do a hot and then a wet as u said and ill have another look in the rocker cover just incase some thing sillys amiss ill let u know

cheers again both
Old 25-04-2007, 07:36 PM
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safechav i cant get one of them relays anywhere so can u tell me how to bodge it i allready bridged the fuel pump to run with igmition on, so how do i connect this fuel module relay 2 so it works corectly any help appreciated would this cause it to run poorly cheers
Old 25-04-2007, 07:38 PM
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Bare with me i'll have another look on microcat for the relay.

And ill have a look at the diagrams aswell to see how you can bridge it just incase but ideally you want the relay in there.
Old 25-04-2007, 07:57 PM
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i know what ur saying,but if its switched of the ignition could i put a inline fuse in the bridge for safety?i just want to get it goin and mot it etc the summers nearly here, wanna enjoy it thanks again
Old 25-04-2007, 08:03 PM
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you could do yea, i'll have to find out what value the fuse is though.

But lets just hope we can get you a proper jobby
Old 26-04-2007, 05:03 PM
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fingers crossed for the relay but if not the bodge will have to do allready got fire ext. plumbed in lol let me know m8
Old 30-04-2007, 05:18 PM
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wooo hoo think ive nearly found out what was wrong i did as moonie said and on no 1 cyl the com was slightly low so i took the rocker off and the little thing that sits in the rocker was shatteres into 3 peices hence the low comp so i thought id look at the lifters out and have a look at the cam,well it well fooked on no 3 so bettween the two this has got to cause the slight missfire yea? i mean on 3 there wasnt even a lobe there hardly

so im on the look out for a std rst cam in good cond if u know anyone cheers
Old 30-04-2007, 08:04 PM
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Buy a new cam and lifters mate second hand cams are touch and go.
Old 30-04-2007, 09:00 PM
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your not the only person said that to me just trying to keep costs down just bought a new turbo last week but will do cheers m8 will keep ya posted cheers
Old 01-05-2007, 01:31 AM
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You'll only regret it if you buy a second hand cam
Old 01-05-2007, 09:58 PM
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i got a m8 whos got a account at graham goode racing and for a cam kit (STD) head set n bolts 120 quid i thought that was good and by a reputable firm aswell told him to go for it anyway fingers crossed
Old 01-05-2007, 11:10 PM
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Doesnt sound too bad
Old 23-05-2007, 05:29 PM
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right i got it running and it does sound sweet and idles lovely when its warm,but startings a total slut from cold until i put a live feed into the afore mentioned relay connector and it fired up but leave the live feed in there for long it runs lumpy and cuts out eventualuly

also the fuel pump relay on a s1 loom is has a blk/yellow wire to the relay seperatly to pin 50 iirc should this be connected to anything as im runnung a s2 fuel pump relay that ive wired off the diagrams

just to refresh ya safechav




Ahhhhhhhhhhhhhhhh, ahhhhhhhhhh! True!

Think thats the injection module relay plug from what i remember! (ive not seen many proper s1 looms)

That IS important, without it the KE ECU will have no power supply and makes them a complete slut to start from cold.




i still cant get one of these relays from anywhere local its doin my head in but atleast allswell mechanicly apart from no boost lol is there anyway of wireing it up any other way or do u know anybody with one


also ive wired up the s2 relay as in the haynes and it primesswitchin the ign on, but on cranking it isnt clicking ie gettin no feed from coil/ecu or whatever so i bridged it but by bridging it has it mad some thing else not work ie thermo time/cold start

i know u have your own probs at the mo. but if u get a min would u have a look please no worries if ur busy cheers matey


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