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Author Subject: Omex TPS
Niall

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Location: Epsom

Registered: 06 Jun 2012

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Post #1
Looking for advice from people using aftermarket management with the standard GTi TPS ideally.
Basically, I've got an issue where when I'm on very light throttle (e.g in traffic) The throttle is just too sensitive and ends up lurching a fair bit. As far as i understand, the original TPS was only ever used to signal the standard ECU to tell it when its on full throttle or closed and nothing really in-between so it gives a liner output. I was wondering if anyone had ever overcome this issue and used a different TPS that isn't linear? So basically, less sensitive at the beginning of the throttle range? Im considering buying one of the Omex ones (look identical to the Jenvey ones) but i don't want to risk spending £75 to find out its just the same!!
Posted 24th Dec 2014 at 19:56
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fatlapit

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Location: STOCKSFIELD

Registered: 02 Nov 2010

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Post #2
mines fine and im on omex 600. depends if youve wired it properly

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Posted 24th Dec 2014 at 20:03
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Niall

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Post #3
Its wired using a omex loom. Works spot on, reacts spot on, Raw values set up spot on but it just seems to be too sensitive at low RPM and loads!
Posted 24th Dec 2014 at 20:07
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fatlapit

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Post #4
aye but u can wire it 2 ways

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Posted 24th Dec 2014 at 20:17
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Niall

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Post #5
Oh really? Got any info on the 2 ways then?

BTW ECU came back from Omex a few weeks ago. Top service from Guy. He couldnt find a fault on the test bench but replaced the drivers always and its been fine since! Glad i went for Omex now
Posted 24th Dec 2014 at 20:21
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fatlapit

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Post #6
downlad the pdf for omex 600 and look at page 9 it shows u the correct way but it will also work the wrong way

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Posted 24th Dec 2014 at 20:21
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Niall

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Post #7
Ah thanks mate i never even realised it could work the wrong way round. Ill have a look tomorrow and see whats going on. Not many people on the roads christmas day so perfect for a test hoon!
Posted 24th Dec 2014 at 20:32
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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

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Post #8
needs more mapping.

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Posted 24th Dec 2014 at 20:40
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fatlapit

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Post #9
took me a couple of goes to get it right. if its wronng mapping has bot all to do with it

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Posted 24th Dec 2014 at 20:50
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Niall

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Post #10
Ive got a lot of confidence in the mapping tbh but we will see. Il try messing with the wiring and if that doesn't cure it, ill get it back to T&R
Posted 24th Dec 2014 at 21:12
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stef306

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Location: lyme regis

Registered: 20 Sep 2009

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Post #11
welshpug! wrote:
needs more mapping.


great help as always!

ive spoke to sandy about this as i some time encounter it , the tb shaft can be sloppy in the tps and he advised trying some tape around it to take up the slack.

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1990 205 gti6 supercharged
Posted 24th Dec 2014 at 23:06
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allanallen

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Location: Buxton

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Post #12
Just another thought but is the throttle body standard? You've not bored all the ramps out of the body or anything?
'Ported' throttle bodies can ruin light throttle driving.

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Posted 25th Dec 2014 at 08:20
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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,838

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Post #13
stef306 wrote:
welshpug! wrote:
needs more mapping.


great help as always!

ive spoke to sandy about this as i some time encounter it , the tb shaft can be sloppy in the tps and he advised trying some tape around it to take up the slack.


oh, you're one of them.

mapping certainly helped in my experience.

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 25th Dec 2014 at 08:50
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stef306

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Location: lyme regis

Registered: 20 Sep 2009

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Post #14
allanallen wrote:
Just another thought but is the throttle body standard? You've not bored all the ramps out of the body or anything?
'Ported' throttle bodies can ruin light throttle driving.


Mine has been slightly I must admit.

________________________________________

1990 205 gti6 supercharged
Posted 25th Dec 2014 at 10:31
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stef306

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Location: lyme regis

Registered: 20 Sep 2009

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Post #15
welshpug! wrote:
stef306 wrote:
welshpug! wrote:
needs more mapping.


great help as always!

ive spoke to sandy about this as i some time encounter it , the tb shaft can be sloppy in the tps and he advised trying some tape around it to take up the slack.


oh, you're one of them.

mapping certainly helped in my experience.


I'll be sure to tell sandy that you don't think his mapping is up to scratch. Thumbs up

________________________________________

1990 205 gti6 supercharged
Posted 25th Dec 2014 at 10:32
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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,838

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Post #16
you tit, niall hasn't had mapping dome by sandy.

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 25th Dec 2014 at 10:45
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Niall

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Location: Epsom

Registered: 06 Jun 2012

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Post #17
allanallen wrote:
Just another thought but is the throttle body standard? You've not bored all the ramps out of the body or anything?
'Ported' throttle bodies can ruin light throttle driving.


Good point Allan but no, my TB is completely standard. Just jacked open ever so slightly as it runs scatter spark rather than ICV



welshpug! wrote:
you tit, niall hasn't had mapping dome by sandy.


No, mines been done by Track and Road. I would of had Sandy do it but he's just too far and considering the rep T&R have, i was more than happy to let them have it.

I was thinking about this last night whist i couldnt sleep waiting for santa to come. I need to check my map when i can be bothered to find my laptop as i have a feeling that seeing as it only does it as very low RPM and throttle load (literally when you're crawling at idle in 1st basically), it may be jumping in and out of idle condition
Posted 25th Dec 2014 at 10:55
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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,838

Status: Offline
Post #18
quite likely, without doing the same engines day in day out you'll rarely get them as good as o.e.m, time doing road mapping and logging is where you can smooth them out a lot.

dunno where stefs s**tty attitude has come from nor why he thinks I dislike sandy for some reason??

niall, its not that far down there and it is 100% worth it, youre only in london not Scotland LOL

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 25th Dec 2014 at 11:06
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Niall

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Location: Epsom

Registered: 06 Jun 2012

Posts: 1,941

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Post #19
Oh yeah i know every engine is different and Peugeot would of spent millions developing the original map. I expected that and expected a sense of rawness with the omex but considering its a very basic system, it drives VERY VERY well. Much better than cars I've driven from a certain other "peugeot specialist" mapper also in Essex.

Considering i had to have the car flatbed there, i wasn't paying to flat bed it down to Sandy! lol
Posted 25th Dec 2014 at 11:11
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fatlapit

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Location: STOCKSFIELD

Registered: 02 Nov 2010

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Post #20
did they really spendmillions??

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Posted 25th Dec 2014 at 17:18
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Niall

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Location: Epsom

Registered: 06 Jun 2012

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Post #21
£2,341,847.20 to be exact
Posted 25th Dec 2014 at 17:42
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fatlapit

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Location: STOCKSFIELD

Registered: 02 Nov 2010

Posts: 3,040

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Post #22
Hi

What order did you wire the tps in

I think mines possibly wrong

Pin 1 is orange
Pin 2 pink
Pin 3 grey

Thats what i think mine is

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Posted 5th Jan 2017 at 11:29
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