Question about TPS

[Baz]

I have a question thats being bugging me since warren said he had to adjust the throttle position sensor to sort a juddering(kangaroo juice) problem he was having at light throttle load. . .anyway what is the purpose of having the adjustment in the TPS and with his adjusted how does he now know that the TPS is telling the Ecu that the throttles fully open when it is?

 

[frank]

baz, i think the adjustment (2 slots, lower centre) is very limited, and will only affect very low throttle openings
http://www.micra.org.uk/attachment.php?attachmentid=11956&stc=1&d=1234465529

 

[Ed]

Its used to set the correct idle over-run setting, if this is incorrect then yet youll get very odd juddering. Barry set it to read about 0.5v at idle and it will be fine.

 

[Baz]

Its used to set the correct idle over-run setting, if this is incorrect then yet youll get very odd juddering. Barry set it to read about 0.5v at idle and it will be fine.

Where do I measure the voltage when its running.I have no access to the E-manage as there's a password on it by the last mapper

 

[Ed]

well leave it, you don't have a problem with it anyway

 

[Baz]

well leave it, you don't have a problem with it anyway

But If I did its making me think now:laugh:

 

[solarice]

If its similar to the k11 tps you can measure the readings by unplugging the connector and probing it with a meter (car not running)...the haynes has tolerences stated, should also maybe for the k10?

i wouldnt fiddle with it though, unless you know the emanage isnt setup to use it (only used for taking air away iirc), as fiddling with it will also change the values the emanage gets.

 

[warren]

sensor

ok well ed barry might not have the problem but i kinda do, another thing i wanted to ask would this sensor not being in the correct position make my car judder in the sc range at full throttle? as i have changed all the vacumm lines and put a new bypass control valve in??

 

[Snikty]

How do you get in s/c rang at full throttle?? Isnt full throttle turbo range??

 

[warren]

sensor

sorry my misatake i mean foot down up until the turbo kiks in is juddering

 

[Baz]

How do you get in s/c rang at full throttle?? Isnt full throttle turbo range??

Under 4-4500k rpm its s/c ?? And warren I don't think so

 

[Ed]

Warren you mean the supercharger to turbo transition. If its juddering thats nothing to do with TPS thats still the bypass control valve.

 

[Baz]

Warren you mean the supercharger to turbo transition. If its juddering thats nothing to do with TPS thats still the bypass control valve.

Gone off topic abit here but I agree .Ed typically how long should a brand new bypass control valve last?Suppose it depends on how clean the engines running?As in oil in the boost pipes and eventually getting to the vac lines and clogging up the BP control valve?