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Budding Enthusiast
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  • Ford Model
    Focus Mk1
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  • UK/Ireland Location

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BogdanBogdan's Achievements

  1. Hello and thank you for your reply. I took out the iacv and spray cleaned inside the valve with an electrical spray for potentiometers. This after i cleaned it in the first place with the engine cleaning spray. I let it overnight with this electrical spray cleaner and next day i tested it on the car. I didnt put the bolts on and let it sit on the engine face-down and recorded the movement of the valve inside (when ignition is set the valve does a half to full to close motion test). I did it for a couple of times (you can see in the gif attached below and also tried moving it by hand. The spring seems healthy and it doesn t stick. Im not sure though if it's as healthy as it should be but it looks fine.
  2. Okay so i did all the above in the exact same order and time amount and it didnt work out. I screenrecorded some important values i could find using an obd scanner. At first, i pinched the gas pedal, revs go really up and stay for a couple of seconds, idling is also high. Then i pinched it again, then i pressed it a little bit more and held it there for a second or two, you can see the rpms hold but the amount i pushed the throttle was like 5-10%, abnormal to rev up to 4k rpm. I also tried to look onto some fuel pressure values, i only found a fuel flow sensor that didnt go anywhere high in all this testing. Unfortunately i couldn t find any reading for fuel pressure, i also heard it slightly backfire when coming back to "idle" after those 3k and above rpms, i thought maybe there s a problem with the injection, but again, fuel flow value stood on minimum. I don't really know how to correlate at first these values, there s the vacuum, the manifold absolute pressure and intake air temp, as far as i heard, the ecu calculates the amount of injected fuel and other things based on these three. If anyone knows to tell me if they're in good range please help. Thanks!
  3. Hello, thanks a lot for your time put into response. What i've used is this https://product.amtra.co/ktm/20-A57 I will follow each step you suggested and will come with a feedback. I've read multiple times this reset done by disconnecting the battery (which should reset the PCM unit). I will follow the steps and hopefully it will solve. Coming back soon!
  4. Hello, recently i decided to clean my intake with a towel and some engine cleaning spray and so i cleaned the throttle body, the throttle flap and the IACV. Next day i took the car on the road and after about some time, after warm-up, it began progressively to rev itself at stops, while on neutral. These revs became so bad that at a stop the car would rev itself to 3k rpm, hold it for a couple of seconds, then drop back to an abnormal idle of 1300-1400 rpm. As i mentioned, this phenomenon intensified with time. Another thing that i've found is that i can "trigger" this happening by just lightly touching the gas pedal. If i just "pinch" the pedal, the car would gain in rpms to about 2k, hold for 2-3 seconds, then drop down. Since then the idling has always been higher than normal, hovering above 1k. What i've done so far was check every posible screw of the intake body for false-air as you say that could be vacuumed and i could've find anything loose or indicating there are vacuum gaps. I did an obd test to check if the throttle position sensor has gone bad and when pinching the pedal it doesn't gain ginomously in value, i did a fault check and no errors popped up. I tried to diagnose if it's the IACV or the throttle body that's causing this weird happening. What i've done initially was to disconnect the iacv sensor that controls the valve (so the valve would stay closed). After doing so, the car still has the same issue but at a lower scale. If i reconnect it, the phenomenon amplifies. I also started the car without the intake filter box to take a closer look at the throttle flap during the self-revving happening. I considered the fact that maybe, after cleaning the flap, there would be an amplified vacuumed air flowing at the outer edge of the flap and this whole thing would make the flap slightly tilt and letting more air in the engine but it doesn't look like it's happening and also the throttle position sensor (taking information from the position of the flap) doesn't increase in value significantly after pinching the gas pedal. Have you encountered this ever before? Do you have any suggestion? Thanks so much!
  5. Okay, thanks alot for your responses, i'll proceed replacing it
  6. Hi, i have an old focus mk1 with the 6000cd radio unit and lately im confronting with an annoying issue which i'll describe in the following: Most of the times when i go out with the car, after a period of time, tens of minutes, the radio cuts off and starts to crackle and produce pops in the speakers, no matter if i switch the frequency, am to fm or anything like that. And then it stays like that until i leave the car parked for an amount of time and then get back on and it works and it happens the same again after another period of time. Turning the ignition off and on right after doesn't solve the problem. It's weird that this happens under no circumstances, not after hitting a pot, turning up the volume, changing settings or anything like that, it just happens😁. I suspect some bad wiring but i have no idea where to start to check. I've taken off the entire ratio unit to check the connections behind and they are all fine. even after replugging every wire, the next day it happened again. Any suggestions, anyone experienced this in the past? I'm reallly looking forward to this, thanks alot for anyone reading and answering this !
  7. I'm not quite sure what you're referring to and where could I use that
  8. I have changed that recently too ( like 4 months ago )
  9. Hi, i have a mk1 focus with the 1.6 zetec-se gas engine and i've stumbled across an issue with the acceleration - while reving between 2000 to 3000 rpm the engine won't hold the rpm, it will reach it then slowly drop even though i'm holding the gas pedal ( talking about stationary reving ). While driving, let's say in 3rd gear, doing the exact same circumstances will result in a forth and back waving of the car, like it's accelerating for a moment then it drops and it does this progressively worse. This does not happen if not in the 2000-3000 rpm range. I have checked the throttle valve and it's not muddy. Anyone else have encountered this issue? Could be a sensor? Could be the fuel pump? What would you suggest, thank you!
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