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Post by splay1997 on Apr 13, 2019 11:10:03 GMT 1
Ah gutted, the audio's not loud enough. I tried uploading a video but file size is too big. I was thinking it was something to do with the accelerator, as I have looked over the clutch switch sensor, wasn't sticking or anything seemed fine. The throttle body has also been thoroughly cleaned. Any other way to test the clutch sensor?
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Post by givusaclue on Apr 13, 2019 12:14:26 GMT 1
the easiest way is by looking at live data on a scanner to see when it actually switches in relation to the position of the clutch pedal
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Post by Joepublic on Apr 13, 2019 14:28:17 GMT 1
You could disconnect the wiring from the plug and take the car for a drive to see if there's any change?
You could rig up a test lamp using torch batteries and a bulb?
Or you could go totally rogue and fit a brand new switch for approx £10
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Post by Deleted on Apr 13, 2019 18:54:06 GMT 1
If the clutch pedal switch were faulty I'd suspect that the engine would not start. The primary purpose of the switch is to stop the engine starting when the transmission is in gear, therefore depressing the clutch pedal and the engine starting would tell me the switch is working.
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Post by valhalla on Apr 13, 2019 21:09:45 GMT 1
If the clutch pedal switch were faulty I'd suspect that the engine would not start. The primary purpose of the switch is to stop the engine starting when the transmission is in gear, therefore depressing the clutch pedal and the engine starting would tell me the switch is working. Unlikely on a 1.2 Ibiza or Arosa. The switch is there for idle control, specifically to look after surging during gearchanges. Other cars - maybe, especially within the VAG car-park. Definitely not on most cars with a Bosch EDC / ME control structure; it only feeds into the idle adaption paramters and surge-control / driveability structures.
The OP still has not said what the year is on this car, so we are all guessing. I have seen this specifically on an Arosa with that sort of engine, that was three years ago, but I have no idea what year this car is, so I cannot fathom any relationship to what I've seen before. I have fixed this sort of thing cheaply and easily in the past, but I'm not a mind-reader!
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Post by splay1997 on Apr 13, 2019 22:13:22 GMT 1
If the clutch pedal switch were faulty I'd suspect that the engine would not start. The primary purpose of the switch is to stop the engine starting when the transmission is in gear, therefore depressing the clutch pedal and the engine starting would tell me the switch is working. Unlikely on a 1.2 Ibiza or Arosa. The switch is there for idle control, specifically to look after surging during gearchanges. Other cars - maybe, especially within the VAG car-park. Definitely not on most cars with a Bosch EDC / ME control structure; it only feeds into the idle adaption paramters and surge-control / driveability structures.
The OP still has not said what the year is on this car, so we are all guessing. I have seen this specifically on an Arosa with that sort of engine, that was three years ago, but I have no idea what year this car is, so I cannot fathom any relationship to what I've seen before. I have fixed this sort of thing cheaply and easily in the past, but I'm not a mind-reader!
Sorry just realised I did not mention model or year.The car is a seat ibiza 1.2 2008 6L.
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Post by rhyds on Apr 14, 2019 8:49:56 GMT 1
If the clutch pedal switch were faulty I'd suspect that the engine would not start. The primary purpose of the switch is to stop the engine starting when the transmission is in gear, therefore depressing the clutch pedal and the engine starting would tell me the switch is working. Unlikely on a 1.2 Ibiza or Arosa. The switch is there for idle control, specifically to look after surging during gearchanges. Other cars - maybe, especially within the VAG car-park. Definitely not on most cars with a Bosch EDC / ME control structure; it only feeds into the idle adaption paramters and surge-control / driveability structures.
The OP still has not said what the year is on this car, so we are all guessing. I have seen this specifically on an Arosa with that sort of engine, that was three years ago, but I have no idea what year this car is, so I cannot fathom any relationship to what I've seen before. I have fixed this sort of thing cheaply and easily in the past, but I'm not a mind-reader!
Makes sense to me too, especially if its a fly-by-wire throttle setup.
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Post by Rhubarb on Apr 14, 2019 11:28:55 GMT 1
Probably nothing to do with the clutch switch, more likely the throttle body needs cleaning
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Post by givusaclue on Apr 14, 2019 16:35:58 GMT 1
If the clutch pedal switch were faulty I'd suspect that the engine would not start. The primary purpose of the switch is to stop the engine starting when the transmission is in gear, therefore depressing the clutch pedal and the engine starting would tell me the switch is working. Think vivaro/trafic/primastar, they do exactly this fault when they’re out of adjustment ‘cos someone’s twanged the clutch pedal
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Post by Deleted on Apr 14, 2019 18:11:33 GMT 1
If the clutch pedal switch were faulty I'd suspect that the engine would not start. The primary purpose of the switch is to stop the engine starting when the transmission is in gear, therefore depressing the clutch pedal and the engine starting would tell me the switch is working. Unlikely on a 1.2 Ibiza or Arosa. The switch is there for idle control, specifically to look after surging during gearchanges. Other cars - maybe, especially within the VAG car-park. Definitely not on most cars with a Bosch EDC / ME control structure; it only feeds into the idle adaption paramters and surge-control / driveability structures.
The OP still has not said what the year is on this car, so we are all guessing. I have seen this specifically on an Arosa with that sort of engine, that was three years ago, but I have no idea what year this car is, so I cannot fathom any relationship to what I've seen before. I have fixed this sort of thing cheaply and easily in the past, but I'm not a mind-reader!
Sorry, wasn't thinking anywhere near that deep to be honest, just took the basics of switch idea and said it opens and closes, if the circuit is incomplete then it would not start. My mate he is 67 years young still working and just took delivery of a new C4, his words to me today were something along the lines of; why do they insist on putting all this sh1t on cars, I just want to get in start it and drive the blo*dy thing.
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Post by givusaclue on Apr 14, 2019 19:52:24 GMT 1
Guardian
Think brake switch on your Kia ceed
If it thinks the clutch is depressed it will adjust the mapping partially because if it thinks the clutch is being operated the engine won’t want as much fuel. Everything complicated on a modern vehicle is an attempt to cut fuel emissions, it’s irrelevant that they often don’t work very well or for very long & cost a fortune to repair as once it’s passed the magic 3 years its the owners problem, not the manufacturers
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Post by valhalla on Apr 14, 2019 22:00:56 GMT 1
My mate he is 67 years young still working and just took delivery of a new C4, his words to me today were something along the lines of; why do they insist on putting all this sh1t on cars, I just want to get in start it and drive the blo*dy thing. It's so the snowflake generation can drive them....
1) Open driver's door without damaging fingernails 2) Sit yourself down into a seat that has found just your correct position and firmness, without any input from yourself 3) Close driver's door with mobile phone app 4) Push-button start/stop system should have engaged automatically by now 5) Check yourself in the reversing camera fitted to the sun-visor, before pressing button on mobile phone to take a selfie 6) Ensure that you have a full 10Gbps downstream and upstream data-rate on the infotainment console, otherwise prepare to text the dealer for a refund 7) Voice-command the in-built telephone system to phone all your mates on a conference call, to discuss where to meet for salad-cocktails and an ice-cold enema 8) Stamp foot onto "the GO pedal" and allow auto-parking system to clear all the cars around you, whilst chatting animately with your mates over the car's speaker system 9) Admire yourself with your Gucci "man-bag" before taking another selfie
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Post by chippie on Apr 15, 2019 15:11:50 GMT 1
Ok, my input.... Without any gears engaged; Does the engine idle ok at tickover whether hot or cold!
If you blip the throttle pedal, does the engine speed increase accordingly and then return to normal? If it does, then its unlikely to be the throttle body/actuator...
With the car out of gear and at tickover, keep your feet off the throttle pedal, depress the clutch pedal; does the engine speed change and if so by how much?
A live data scan of the switch input status to the ecu will tell you if the switch is transitioning or sticking...
Do let us know how you get on...
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Post by splay1997 on Apr 16, 2019 0:04:31 GMT 1
Hi Guys,
I have added two pictures of rpm data if its helps.As you can see there are some dramatic increases in RPM.Let me know what you think.
thank you!
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Post by upkeep on Apr 16, 2019 7:56:06 GMT 1
Unlikely on a 1.2 Ibiza or Arosa. The switch is there for idle control, specifically to look after surging during gearchanges. Other cars - maybe, especially within the VAG car-park. Definitely not on most cars with a Bosch EDC / ME control structure; it only feeds into the idle adaption paramters and surge-control / driveability structures.
The OP still has not said what the year is on this car, so we are all guessing. I have seen this specifically on an Arosa with that sort of engine, that was three years ago, but I have no idea what year this car is, so I cannot fathom any relationship to what I've seen before. I have fixed this sort of thing cheaply and easily in the past, but I'm not a mind-reader!
Sorry, wasn't thinking anywhere near that deep to be honest, just took the basics of switch idea and said it opens and closes, if the circuit is incomplete then it would not start. My mate he is 67 years young still working and just took delivery of a new C4, his words to me today were something along the lines of; why do they insist on putting all this sh1t on cars, I just want to get in start it and drive the blo*dy thing. Buy a blo*dy marina then, have you people forgotten how crap cars were in the 60's/70's utter junk.
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