Throttle position sensor/ VANOS adaptation - MINI Cooper Forum

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post #1 of 4 (permalink) Old Dec 26th, 2018, 12:00 AM Thread Starter
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Throttle position sensor/ VANOS adaptation

I have been having issue with moving car on first gear, from full stop. it feels like car loosing power after clutch engages, the remedy was to press more on accelerator pedal to increase revs.
So essentially I have need keeping higher revs to start move the car.
this issue was always with the car, when we bought it.
so far changes, clutch, new gearbox, timing chain, issue still exist.
ps, i did all the fixes not to fix just this issue, it was other unrelated issues.

recently cleaned the pressure sensor and throttle body. new oil and air filter.
My suspicion is Throttle position sensor need adaptation or maybe VANOS motor need adaptation.
Any suggestions how to do them?

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post #2 of 4 (permalink) Old Dec 26th, 2018, 08:20 AM
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Originally Posted by Denys Milano View Post
I have been having issue with moving car on first gear, from full stop. it feels like car loosing power after clutch engages, the remedy was to press more on accelerator pedal to increase revs.
So essentially I have need keeping higher revs to start move the car.
this issue was always with the car, when we bought it.
so far changes, clutch, new gearbox, timing chain, issue still exist.
ps, i did all the fixes not to fix just this issue, it was other unrelated issues.

recently cleaned the pressure sensor and throttle body. new oil and air filter.
My suspicion is Throttle position sensor need adaptation or maybe VANOS motor need adaptation.
Any suggestions how to do them?
have you done a diagnostics scan, if have with what scanner and what did you find, did you do a live data scan and see that after timing chain was done that it was timing correctly,, as for adaptation there is a way around this i do it all the time,, car needs to be run from cold to hot ie 3 10 miles runs in-between letting car go cold, this process if ecu is working correctly and more importantly if all faults have been cured will relearn its adaptations..
this all said if you dont have access to deep enough diagnostics its impossible to work the problems out, list below of must have tools,
oil pressure tester,
compression tester.
multimeter
autocom cdp plus diagnostics easy one to use fairly cheap, 30 ish on ebay.
or wow wurth snooper diagnostics,
or insta p and d bmw software, but a lot harder to use and install.
i have lost count the amount of times someone has private messaged me after trying to fit a timing chain and realised they had got it wrong dont take much,

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post #3 of 4 (permalink) Old Apr 13th, 2019, 12:59 AM Thread Starter
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Originally Posted by mike1967 View Post
have you done a diagnostics scan, if have with what scanner and what did you find, did you do a live data scan and see that after timing chain was done that it was timing correctly,, as for adaptation there is a way around this i do it all the time,, car needs to be run from cold to hot ie 3 10 miles runs in-between letting car go cold, this process if ecu is working correctly and more importantly if all faults have been cured will relearn its adaptations..
this all said if you dont have access to deep enough diagnostics its impossible to work the problems out, list below of must have tools,
oil pressure tester,
compression tester.
multimeter
autocom cdp plus diagnostics easy one to use fairly cheap, 30 ish on ebay.
or wow wurth snooper diagnostics,
or insta p and d bmw software, but a lot harder to use and install.
i have lost count the amount of times someone has private messaged me after trying to fit a timing chain and realised they had got it wrong dont take much,
I am kind of suspecting MAF sensor, what are the values you should see on MINI r56 1.4 V753506980, vonder if anyone knows?

ALso mike1967 how can I tell if timing is off by looking at the ODB scaner?
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post #4 of 4 (permalink) Old Apr 13th, 2019, 08:04 AM
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Quote:
Originally Posted by Denys Milano View Post
I am kind of suspecting MAF sensor, what are the values you should see on MINI r56 1.4 V753506980, vonder if anyone knows?

ALso mike1967 how can I tell if timing is off by looking at the ODB scaner?
ALso mike1967 how can I tell if timing is off by looking at the ODB scaner?[/QUOTE]
yes i can with autocon cdp can see the prescribed and actual positions of vanos,
belowscreen shots off a fully working correctly 1.4 mini one
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Albert Einstein: The definition of insanity is doing the same thing over and over and expecting different results.
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