Peacedub

I thought I would struggle to find one as they are unique to the 9a but I was surprised at the response I got and "Dickie" sorted me one out complete with airbox and injectors for a good price so that's great just a straight swap. I should really have left the idle screw where it was when it was running good but me being me wasn't happy that it was still out of spec and knew that it was still at fault hence why I couldn't adjust anymore and push the screw into the unit and lost it,lol. Hopefully the new unit will be here midweek so I shall update once fitted

Request fulfilled. Thanks Dickie

Sounds good pal, just what I'm after. Would you post? How much do you want for it?

Ha ha yes it does, "tuned" the mk3 vr6 many a time up and down there! Would love to bring the valver up to visit "home" but it's running like a bag of spanners at the mo. Soon though fingers crossed soon.

As title please, I have a duff air flow potentiometer on mine. Quite urgent as it sounds like a scooby at the minute and not sure thats a good thing! Thanks in advance

Ok so here's an update, and an annoying one at that! It looks like I (now) need a new metering head! Explanation below. I had my head in the Bentley book for a good 3 hours last night and today I went to town with some testing. Tps idle closed - test all good = 1 ohm Tps idle open - test all good = o/c Tps full throttle closed - test all good = o/c Tps full throttle open - test all good = 1 ohm Sensor plate checked correct alignment with no fouling, easy to lift with magnet Temp sensor - all good. Reading 7-800 ohms at 55 degrees temp when tested ISV all good - 12v on connector 9 ohms on sensor Differential pressure regulator - all good reading 19.8 ohms. Max 20 as specified A couple of others I did but all passed tests........ Now here comes the not so funny part. I came to check the air flow sensor potentiometer located to the left of metering head. Here is what this does for the car as described in Bentley "The air flow sensor potentiometer provides the engine load signal to the ECU for control of ignition timing, acceleration and full throttle enrichment" I decided to leave this till last as all these 3 sounded like symptoms I have all of them so used process of elimination. I tested the lead for the correct voltage between pin 1 & 3(reading was 4.8VDC so within spec) so the next step was to connect the lead back in and connect leads to back of pins 2 & 3 while connected to sensor, start engine and idle for 2 min and take reading. So the input was 4.8VDC I should be seeing between 0.45VDC and 0.8VDC. I was get 0.98VDC so out of spec. If so you can adjust using a trim screw located next to the connection under loads of silicone. I did this while running and it started going up in volts so went the other way and got it to 0.87VDC and no further. I had a quick test of the car and it felt a 100 times better, with better throttle response and acceleration with no backfiring and good idle but I knew it wasn't in spec so I tried again but this time the screw disappeared inside the unit and now it runs like a bag of **** backfiring all over the shop and bringing up more fault codes than ever one being 0520 which is MASS AIR FLOW,lol. At least i found out what the culprit was so onto my next question..... Has anyone got a spare metering head for sale??

Welcome! Looks really good in white. Born and bred Halifax (Wainstalls) Lived with mrs in Silsden Moved to Derby for job Oh how i miss "Home"

Some good advice there. Where would i find the specs to plot the resistance checks? i have the bentley book for mk2 golf which also covers KR but ive not managed to have a look yet, its going to be a busy weekend for me,lol. I have planty of ISV's knocking about so will give that a shot too

Sorry it was worded wrong I meant the TPS doesn't know where it is meaning is it thinking its WOT or idle cos it stinks of fuel and getting crap mpg. Still not checked if it's a switch or potentiometer I'm guessing the latter because my mk2 golf has a switch and the corrado is later spec. We shall see

You have the same symptoms as mine. cruising along at 2-3k its really juddery but loves it when you cane it! Still not got around to fault finding but hopefully doing it this weekend so i shall have to grin and bear it till then. I have noticed since i cleared the 00525 (lambda probe)fault numerous times that the revs dont really go below 800rpm and subsequently stall everytime i pull up at some lights so thats a glimmer of hope. I really am thinking its my throttle position sensor playing up and not knowing where the hell it is!

Yup exactly what mine is doing. Please let me know how the RR goes. Hopefully this weekend i shall start some fault finding with the fluke, not had chance yet due to no daylight! its annoying as it was ok prior to cam swap, was a bit sluggish to start but then further up the revs it was sweet. Timing is absolutley bang on since swap. up the revs its lovely and can tell the cam is working its just the idle and setting of is very hesitant. Also stinks of fuel. Im thinking the fault code 516 (tps) is thinking its at WOT and overfuelling??

Yes exactly why i need to nip it in the bud now before it costs me the earth (as usual with dubs) and the mrs starts kicking off cos there is a million parcels being delivered. You know we have all been there!! will crack the multimeter out and start doing some fault finding. First i need to check if its a switch or a potentiometer, i cant remember? will check the pins 1,2 &3 resistance figures while at idle and revs.

Thanks for that, i have read it some stage but just scanned through it as i wasnt having an issue at the time. Will print off and wait for a warm day to go through it. John is the font of all knowledge. His digi setup guide was awesome for my mk2! Just to add i disconnected the probe connector on top of engine mount and it did nothing so probably worth while getting a new probe..

Hi all, I know this has been discussed on numerous occasions but i just cant seem to put my finger on the issues im having. To be fair its bareable but my fuel consumption is terrible. When i start from cold its bang on but then when it gets up to temp it starts to fluctuate and if i come to a stop it stalls but then when i restart it sits beautifully at 950rpm without a murmer. But sometimes it sits at 1500rpm all the time. I just find it strange that its different everytime you restart. These are the fault codes im getting 516 (TPS) - 99% on all the time. Once it cleared and didnt come back on but that was just once! 525 (o2 sensor) - Random. On off and clears everytime 587 (mixture control) Only came on this morning while driving then cleared straight away. I originally thought the roughness was due to KR cam swap but the timing is bang on. I found myself constantly adjusting ignition timing but this would mess everything up up each time i drove, then idle then switch off then start, the idle was different each time one of these happened plus depending on advance or retard obviously messed with the running (good or bad/bottom or top end) The throttle microswitch clicks in and out. Im not sure if i have a tps switch or potentiometer. Could it be running rich all the time? hence explaining the **** fuel consumption (avg 20mpg). I have no vac leaks or injector leaks as i have checked these. Next thing really is to do a resistance check on tps plug. Just wanted to know if any of you have experienced anything similar? (late spec 92 2.0 16v 9a) Thanks in advance Steve

Wow that much! Garage it is then,lol. Thanks for the reply

Not sure on that one. Was a 2 second job for me doing it the other way bottle to bleed nipple using gunson easy bleed kit

Anyone know where I can purchase one of these? Missed out on this one. How much did it sell for by the way? Got an abs issue on my 92 9a and sick of trying to track the fault down Thanks in advance

You will never finish, there is always something else to add or tinker with. A haldex system would be awesome then you can properly wind the boost up. DO IT DO IT DO IT!!

Wow no expense spared on this project.....how i envy you! Very very nice, look forward to seeing the many more brand new toys fitted

Nice wheels! Excellent price with tyres. Just what im looking for.....DAMN YOU CHRISTMAS FOR SKINTING ME!!!

Hi matey, Im after the one with the OE connectors all tucked up nicely in the tupperware boxes! Im after a front ashtray late spec and i will actually take the rear aswell. Forgot also that i need the plastic strip for top of drivers door card if you still got one. Oh and the heko wind deflectors please. Front and rear late spec ashtrays Uprated headlight loom with OE connectors (tupperware boxes) Doorcard top strip Heko wind deflectors How much posted pal and i will pay straight away. could you PM with details please Cheers Steve

Hi mate, I felt lazy and didn't want to read all 14 pages to find out if you still have theses items. Late spec ashtray OEM connector uprated headlight loom Heko wind deflectors Regards Steve

Nice looking motor! I'm in for the engine. Is it possible for pics as it will come? If I'm happy then total up for courier and I'm all over it. Cheers

Hi, Interested in the engine. Where abouts are you based? Could you pallet for courier at cost or is it to much a mission? Regards Steve

Thanks for the reply. Bit far but thanks anyway