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tigacatch

Budding Enthusiast
  • Content count

    13
  • Joined

  • Last visited

About tigacatch

  • Rank
    Member

Contact Methods

  • First Name Steven

Profile Information

  • Ford Model Focus 1.6 Zetec
  • Ford Year 2003
  • UK/Ireland Location WestLothian
  • Annual Mileage 5001 to 10,000
  1. Revs Hunting 2000-2500

    Well tried out new vacuum pipe today and that little white valve for the vacuum too but no luck. I did however notice that when I disconnect the vacuum hose the revs increase to about 2000 rpm and pressing the throttle would gradually increase the revs. The problem at 2100 rpm disappearing. Nice and smooth. However I can't drive it with the vacuum hose disconnected. Some kind of vacuum fault somewhere else. The map sensor works with vacuum too. Maybe that at fault? Disconnected it and started engine but problem still there ?
  2. Revs Hunting 2000-2500

    What's really pee ' ing me of that all problem are to only a specific rev range. Just so weird.
  3. Revs Hunting 2000-2500

    Was thinking the exact same. Definitely everything been changed. Next on my list is to check the injectors by swapping them all around to the if it would still be the same cylinder faults
  4. Revs Hunting 2000-2500

    Quick update, had my mot the other day and failed on emissions test. Needless to say they where testing it at the problem revs and trying to get a decent reading at around 2000-2500. Engine just burning to much fuel. Also now has developed an engine fault. Cylinder 2 and 3 misfire, also engine management came on at 70 mph in 5 gear at around 2300 rpm. Another surprise there haha. So far I have had spark plugs replaced, leads, knock sensor, coil pack and vacuum hose at intake manifold, idle control valve. Problem still the same :-( Car still running underpowered, smelling of fuel, cylinder 2 and 3 misfire and hesitant at 2000 to 2500 rpm :-(
  5. Revs Hunting 2000-2500

    Quick update, had my mot the other day and failed on emissions test. Needless to say they where testing it at the problem revs and trying to get a decent reading at around 2000-2500. Engine just burning to much fuel. Also now has developed an engine fault. Cylinder 2 and 3 misfire, also engine management came on at 70 mph in 5 gear at around 2300 rpm. Another surprise there haha. So far I have had spark plugs replaced, leads, knock sensor, coil pack and vacuum hose at intake manifold, idle control valve. Problem still the same :-( Car still running underpowered, smelling of fuel, cylinder 2 and 3 misfire and hesitant at 2000 to 2500 rpm :-(
  6. Revs Hunting 2000-2500

    Just for your information I was using a elm533 Bluetooth interface ( eBay) and the torque app ( playstore) on android to get a reading of sensors and not some £1000 crappy diagnostics machine. Total cost to me £25 pmsl
  7. Revs Hunting 2000-2500

    I might want add that my son is a mechanic and he also checked it with some fancy garage equipment and told me that no faults where found. My backround is more as computer assembly test and process opetator field thanks to sun microsystems lol But me being me I don't trust mechanics much and even less diagnostic machines !!! That why I invested in a cheap £20 reader of ebay myself and diagnosed it with an android app called "torque" via my android tab. As said before no faults found !! But upon researching the subject on how exactly these sensor work I have learnef to utilize the android app via a chart reading of the sensors (lambda) this appeared to reading sensor 1 ( pre cat upsteam) going up and down in the charts 0.5 - 1 volts aprox as its increasing and decreasing fuel load but bank 2 sensor 1 post cat downstream holding a steady voltage (1.2 approx)" no flux in readings. I personally would expect a similar reading as sensor 1 as I suspect this to be the most important one especially because after cat with co2 emmisions !!! As for fault codes not appearing I suspect because I still have voltage (complete circuit) the CPU thinks all is okay. BTW this is all an educated guess on my behalf. Also regarding vacuum I have disconnected the pipes an plugged holes on pipes and stuck pressurised air in it to test it and all okay. No fall in pressure. You can also do a smoke test to check for leakage " cost nothing" lol Replacement of my sensor delayed to next week to to weather forcast. Hate this weather haha
  8. Revs Hunting 2000-2500

    BTW is the post lambda sensor I think might be at fault !! Managed to get an obd2 thing and bank 1 sensor 1 graph goes up and down the way it should ( I think) but bank2 sensor 1 sitting at 1.2 volt constant !!! No flucuation at all. Can anyone confirm that this sensor (post cat) should read approx the same as bank 1 sensor 1 ??
  9. Revs Hunting 2000-2500

    Yes it will be a 4 wire sensor that unscrews. But I think with it being on exhaust I'll be having to heat it up a little to get it off. Gonna attempt it on Saturday depending on weather lol = Scotland = rain pmsl
  10. Revs Hunting 2000-2500

    Hope this is not a daft question, located map sensor but how do I remove it. Any tips as it looks like I real tough on to get too. I think I see 2 screws but unsure. Any help welcome Cheers
  11. Revs Hunting 2000-2500

    I will attempt doing this at the weekend but don't understand how the map sensor could be at fault as the car is fine at below 2000 and above 2500. Wouldn't this indicate that the map sensor works as intended ?
  12. Revs Hunting 2000-2500

    Can't keep them steady between 2000-2500 Eratic
  13. Revs Hunting 2000-2500

    In need of some help please My ford focus 2003 1.6 zetec SE has developed a problem. Started of last year in the winter when car suddenly woudnt start but after many atemps started eventually. But ever since revs have been hunting between 2000-2500. It also appears to have lost power in that band range. Also fuel consumption higher too as this was confirm when the car was close to failing emissions test as it had high reading. I have since replaced throttlebody and idle control sensor. Also the vacuum hose at the intake with a new one. Dont what to keep replacing stuff. Thats why i need help Btw idle is fine when cold or warm, the problem is band specific