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Got everything together today. Filled her up with coolant, no leaks. Everything seemed fine.
Hopped in to the car, tried to start her... And nothing. She's cranking just fine and tries to go but just won't start...
I removed the Air pump and the ACV (Air controll valve) plugged all the holes and tubing and blocked off the spot where the ACV was. I'm confused...
Could it be that the stock ECU needs the air pump and the ACV to actually run the car?
Going to check the pressure of the engine just to ease my nerves. Can't imagine how anything I did could have damaged the engine though.
Can someone please tell me if removing the Air Pump and the ACV could resolve in to this? My car is a S5 TII, thank you in advance.
I also removed the AWS and plugged the hose outlet that it had.
On an S5 the Air pump activates the VDI so you Need it.,
Thank you for lightning fast response!
I'm going to start taking everything back apart tomorrow and I'm putting the ACV, AWS and the air pump back in place.
This was my own stupidity, I thought that only the N/A models had the VDI and needed the air pump.
Sorry guys, did not get enough time today to start and take everything apart...
In other news, she actually started! I had to start her with my foot all the way down on the gas pedal. I sensed a strong, rich exhaust smell and if I let the engine go below 1000rpm it would start to wobble and choke like crazy. She still managed to keep herself running without me keeping my foot on the pedal.
Was going to check the engine compression with a meter today but when I got to the garage I found out the meter was busted. Had a friend come over and I removed the EGI fuse, took out the lower spark plug from the back rotor and held my hand on the opening as my friend cranked the engine.
Felt a really strong gush of air constantly and the same occurred on the front rotor.
Here's a link to a video where both lower spark plugs and the EGI fuse have been removed. You can hear the compression pulse. Any veterans here to confirm I still have good compression just by sound?
Okay, got the UIM out today and encountered my first problem...
Trying to send info to the injector via. bluetooth...
Rear primary injectors connector was just hanging loose. I soon saw what the problem was. Both of the primary injectors are missing the little plastic part that locks the connector in place...
Thankfully I think I have some spare injectors somewhere in my stash. Going to look for those tomorrow.
Also, could you guys help me out with the UIM VAC. I'm an idiot and can't seem to figure out what to connect to which ever nipple. I assume I can block off all the nipples that are on the left side of the UIM (in the picture) but what about all the ones on the right side? (in the picture)
Not sure if the text is too small. The ones I'm having problem figuring out are on the right side of the UIM in the picture.
Well, got everything out of the way and pulled out the fuel rails and injectors. Found some spare injectors and a buddy from work cleaned and tested them for me.
The cleaned and tested injectors
Also the primary injectors were missing the plastic things that help atomize the fuel, so I went ahead and put some in the motor.
Put everything back together and cranked the motor...
She cranked for a while but then started on her own. Almost died after the few seconds of start-up and had to keep her running with some gas.
Noticed that although the RPM's were showing a steady 1000rpm it sounded like the motor was only doing about 500rpm or so.
Let go of the gas and she rumbles like hell. I'm fearing that there is something wrong with the motor itself but can't figure out what could have gone wrong when all I did was remove the old turbo, the air pump, AWS and the ACV.
Need to check the spark later and get my hands on a compression meter that works.
I'm kicking myself in the head 'cause I can't seem to find out what could be so wrong that the engine doesn't even run on it's own...
Well, got everything out of the way and pulled out the fuel rails and injectors. Found some spare injectors and a buddy from work cleaned and tested them for me.
The cleaned and tested injectors
Also the primary injectors were missing the plastic things that help atomize the fuel, so I went ahead and put some in the motor.
Put everything back together and cranked the motor...
She cranked for a while but then started on her own. Almost died after the few seconds of start-up and had to keep her running with some gas.
Noticed that although the RPM's were showing a steady 1000rpm it sounded like the motor was only doing about 500rpm or so.
Let go of the gas and she rumbles like hell. I'm fearing that there is something wrong with the motor itself but can't figure out what could have gone wrong when all I did was remove the old turbo, the air pump, AWS and the ACV.
Need to check the spark later and get my hands on a compression meter that works.
I'm kicking myself in the head 'cause I can't seem to find out what could be so wrong that the engine doesn't even run on it's own...
-Sampo-
I doubt it's the engine itself what has the problems, more like some wire-connector-vacuum or something problem. Probably because of the emissions delete.. engine sounds nice tho.
I myself always forget something to connect.. even double checking does not help
Or maybe the water inside the intake is blocked off at some places (acv is the thing on the LIM?) and can't get through to some places? Dunno.
Oh how much driving months you get in Lapimaa or Lappi? Thats way up north
The rear rotor is full of gasoline. Took out both lower sparkplugs and cranked it. Nothing came out of the front rotor but the rear one bursted out clouds of gas at a steady pace. Tryed to clean it all out but after 15 minutes of cranking session gasoline still kept coming out of both lower and upper sparkplug holes...
The rear rotor is full of gasoline. Took out both lower sparkplugs and cranked it. Nothing came out of the front rotor but the rear one bursted out clouds of gas at a steady pace. Tryed to clean it all out but after 15 minutes of cranking session gasoline still kept coming out of both lower and upper sparkplug holes...
Sounds like you have a stuck injector your primary and or secondary on the rear rotor is grounding out and staying on pissing gas in it un clip the secondary injector after deflooding it see if that fixes the issue temporarily if so then you know its the secondary if not then primary, hunt for a break in the wire if its what i suspect
Oh how much driving months you get in Lapimaa or Lappi? Thats way up north
Not many, the summer has ended here about a week ago now so I have pretty much 10 months to get this thing running again.
"Summer" here lasts about 2 months but this year it was cold for 1,5 months.
Jumalauta , only two months... I try to get 4-5 months a year for driving, but yes, the summer is over, really wet and cold summer down here also. I almost do not feel bad because of my car not running at the moment- just because it only rains. Still hoping to get to drive til mid October
Hi everyone, and sorry for no updates... Winter has been super slow and not much has happened with the FC. Spent most of my time stripping parts out of another FC that got junked after every nut and bolt was taken out and neatly packaged for future use. Not wanting to make up any excuses, but the garage where I'm currently keeping the FC is packed full of stuff and has been for the past 5 months so haven't got the space to work on the car. I WILL REDEEM MYSELF!
Also took a two week vacation to Japan recently and burned quite a lot of money, so no new parts incoming. Again, sorry...
At least I have done something relaeted to the topic. Made myself a new office chair from a BX BRIDE.
BX BRIDE from the trashed FC
Master degree engineering!
Now I have the safety and support I need to browse this site!
Potato quality, but what can you do.
Thinking about getting some new BRIDE fabric and getting the seat looking nice and fresh. On the other hand I kind of like the patina on it.
It's been way too long since I gave my FC any attention. I've been busy with other things. Changing jobs, buying and renovating my very own apartment to name a couple
Anyway, I stripped everything down again and changed one of the injectors that I thought might have been faulty. Connected everything pretty half assed (I need to plug some emission related pipes and actually connect the intake to the filter box) added some gas and wouldn't you know it, she started right up! Kept her on 1,5K RPM for a while 'till she warmed up a bit and after that the car actually runs on it's own.
The idle is a little low, sailing between 550-700RPM plus after she warmed up properly there's some white/blueish smoke coming from the exhaust. When she sits on 3K RPM I can hear some brapping every now and then and that's no good.
I'm praying that everything will magically fix itself after I plug all the loose pipe ends and make sure there are no vacuum leaks. Also maybe there can be some gasoline mixed with the engine oil 'cause the back rotor was ACTUALLY flooding with gasoline thanks to the stuck injector.
Posting a video of the rough idle and smoking in the coming days, 'till then tips and advice is appriciated
you sound like you have a boost creep because your new exhaust is less restrictive. Get a boost controller and check your wastegate. An upgraded turbo with larger wastegate might help you
07-26-17, 01:12 PM
, only two months... I try to get 4-5 months a year for driving, but yes, the summer is over, really wet and cold summer down here also. I almost do not feel bad because of my car not running at the moment- just because it only rains. Still hoping to get to drive til mid October 
