Omega Owners Forum

Please login or register.

Login with username, password and session length
Advanced search  

News:

Please check the Forum Guidelines at the top of the Newbie section

Pages: [1] 2 3  All   Go Down

Author Topic: Throttle position sensor  (Read 5020 times)

0 Members and 1 Guest are viewing this topic.

Migalot

  • Senior Member
  • ****
  • Offline Offline
  • Gender: Male
  • London
  • Posts: 732
    • Omega 2.6 2002
    • View Profile
Throttle position sensor
« on: 14 June 2018, 13:23:46 »

Can anyone tell me exactly where to find the TPS on a 2.6V6 2002?  ???

Thanks in advance.  :y
Logged

Doctor Gollum

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • In a colds and darks puddleses
  • Posts: 28089
  • If you can't eat them, join them...
    • Feetses.
    • View Profile
Re: Throttle position sensor
« Reply #1 on: 14 June 2018, 13:29:52 »

There are two... One on the throttle body and one on the pedal...

Code for it is usually due the the plug being slightly loose on the throttle body... Cable tying the plug together tightly usually resolves.

Can also be a sigh that the breathers and throttle body are gummed up...

Check both :y
Logged
Onanists always think outside the box.

Migalot

  • Senior Member
  • ****
  • Offline Offline
  • Gender: Male
  • London
  • Posts: 732
    • Omega 2.6 2002
    • View Profile
Re: Throttle position sensor
« Reply #2 on: 14 June 2018, 14:54:11 »

Thanks, Doc, but why is there only this one type shown here? Does this one go on the throttle body?

Can't see one for the pedal listed.

http://www.vehiclepartsdatabase.com/vehicles/allprivateroadvehicles/opel/omegab/26v6/y26se/18241/throttlepositionsensors
Logged

zirk

  • Omega Queen
  • *****
  • Offline Offline
  • Gender: Male
  • Epping Forest
  • Posts: 11431
  • 3.2 Manual Special Saloon ReMapped and LPG'd and
    • 3.2 Manual Special Estate
    • View Profile
Re: Throttle position sensor
« Reply #3 on: 14 June 2018, 15:04:25 »

Thanks, Doc, but why is there only this one type shown here? Does this one go on the throttle body?

Can't see one for the pedal listed.

http://www.vehiclepartsdatabase.com/vehicles/allprivateroadvehicles/opel/omegab/26v6/y26se/18241/throttlepositionsensors
As said, check the Plugs and wiring first, then do Ing. restart before seeking for Parts, they very rarely fail.
Logged

Doctor Gollum

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • In a colds and darks puddleses
  • Posts: 28089
  • If you can't eat them, join them...
    • Feetses.
    • View Profile
Re: Throttle position sensor
« Reply #4 on: 14 June 2018, 15:10:25 »

Thanks, Doc, but why is there only this one type shown here? Does this one go on the throttle body?

Can't see one for the pedal listed.

http://www.vehiclepartsdatabase.com/vehicles/allprivateroadvehicles/opel/omegab/26v6/y26se/18241/throttlepositionsensors
;D
 Sorry to piss on the parade, but that IS the pedal sensor ;)

As Zirk confirmed, see my last. It will be a combination of gummed up throttle body and a loose plug on the throttle body...
Logged
Onanists always think outside the box.

Migalot

  • Senior Member
  • ****
  • Offline Offline
  • Gender: Male
  • London
  • Posts: 732
    • Omega 2.6 2002
    • View Profile
Re: Throttle position sensor
« Reply #5 on: 14 June 2018, 15:36:24 »

Appreciate your input, guys, but you're barking up the wrong tree!

Essentially, I have a new throttle position sensor (as per link), which I bought a long time ago and just wanted to fit it. I don't have a specific TPS problem, but I do have a gearbox issue which Stephens Engineering (autobox specialists) reckon may well be an electrical issue. I am therefore trying to go through the less-expensive sensors, etc. before looking into the box itself.

After having a new crank sensor fitted, the autobox issue disappeared ENTIRELY for three months. It then started to come back (I seem to remember it started to feel a bit odd again after having a jolt in the car from a pothole, but I may be wrong). Essentially, the box works fine on straight acceleration and changes perfectly, but if driving sedately at 30mph, the revs can suddenly rise by 1,000rpm and then it will go into 3rd with a jolt, causing limp home mode and management light on. It always resets after a restart. I've had the codes read and they are

P0730 Incorrect Gear Ratio
P1625-002 Controller voltage switch signal too low

It is NOT an ATF level issue (already checked). The issue first arose about 4 years ago as an irritating, but infrequent problem but it seems to be occurring more frequently now. As I said, Stephens reckon I need an autoelectrician to check it over. Problem is autoelectricians are as rare as hen's teeth round here.

Back to the TPS: Is it straightforward to fit my new one to the throttle? I may as well as there's no cost involved.

       
Logged

Doctor Gollum

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • In a colds and darks puddleses
  • Posts: 28089
  • If you can't eat them, join them...
    • Feetses.
    • View Profile
Re: Throttle position sensor
« Reply #6 on: 14 June 2018, 15:46:50 »

Was the crank sensor a genuine GM one purchased from a genuine VX dealer that you genuinely had to walk in to?

If not, try again :y

Equally, if that isn't a genuine tps sensor (as above) you are wasting your time fitting it as a) it isn't the problem, and b) won't solve anything (might actually make it worse).

And, again, check the throttle body items.
« Last Edit: 14 June 2018, 15:51:49 by Doctor Gollum »
Logged
Onanists always think outside the box.

Nick W

  • Omega Queen
  • *****
  • Offline Offline
  • Gender: Male
  • Chatham, Kent
  • Posts: 10836
  • Rover Metro 1.8VVC
    • 3.0l Elite estate
    • View Profile
Re: Throttle position sensor
« Reply #7 on: 14 June 2018, 15:50:52 »

You have two fault codes that relate to gearbox electrical problems, yet you blame a part that isn't anything to do with either of them. That's not likely to fix the fault.
Logged

Migalot

  • Senior Member
  • ****
  • Offline Offline
  • Gender: Male
  • London
  • Posts: 732
    • Omega 2.6 2002
    • View Profile
Re: Throttle position sensor
« Reply #8 on: 14 June 2018, 18:54:05 »

You have two fault codes that relate to gearbox electrical problems, yet you blame a part that isn't anything to do with either of them. That's not likely to fix the fault.

I'm not blaming anything specifically. Even Stephens Engineering thought it could be the ECU (it's not, as I have swapped it and checked) or a sensor fault.
Logged

Migalot

  • Senior Member
  • ****
  • Offline Offline
  • Gender: Male
  • London
  • Posts: 732
    • Omega 2.6 2002
    • View Profile
Re: Throttle position sensor
« Reply #9 on: 14 June 2018, 19:10:03 »

Just looking around the web and found an Opel site that says error code P1625 is a relay power supply fault.

Could I have a faulty autobox relay?  ???

May take a look tomorrow.
Logged

Doctor Gollum

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • In a colds and darks puddleses
  • Posts: 28089
  • If you can't eat them, join them...
    • Feetses.
    • View Profile
Re: Throttle position sensor
« Reply #10 on: 14 June 2018, 19:13:04 »

Which ecu  ::)

And at risk of repeating myself, where did you buy the crank sensor from? The fact that this cured the issue, and then only for three months tells me two things... 1. It's the problem and 2. That it wasn't a genuine sensor.

The throttle body plug is a recurring weak point and unless the breathers are spotless, the throttle body is probably the colour of molasses inside.

Individually people here, myself included have hundreds of thousands of miles experience of these, collectively there's millions of miles experience.

It's your car, so ultimately you will do whatever you want to do, be try to be mindful of a few things... Advice will be given freely based on the information provided. If you seek advice, ensure that you provide accurate information and also that upon following said advice, you report back with some sort of update. ;)
Logged
Onanists always think outside the box.

Steve B

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Leicestershire
  • Posts: 3638
    • '52' MV6 3.2 Saloon
    • View Profile
Re: Throttle position sensor
« Reply #11 on: 14 June 2018, 19:22:29 »

In the end you will end up swapping that box....this faults been on here loads of times...it always ended with a solenoid valve in the box getting the blame....ive had it Amba had it and a few more.and the cheap simple cure was a AR35.
Logged

Migalot

  • Senior Member
  • ****
  • Offline Offline
  • Gender: Male
  • London
  • Posts: 732
    • Omega 2.6 2002
    • View Profile
Re: Throttle position sensor
« Reply #12 on: 14 June 2018, 21:32:39 »

Which ecu  ::)

Transmission ECU. :y

As far as the crank sensor is concerned, I simply can't remember its provenance as I bought it when I originally got the car and kept it in the storage compartment in the boot.
Logged

Migv6 le Frog Fan

  • Omega Queen
  • *****
  • Offline Offline
  • Gender: Male
  • Webs End.
  • Posts: 11733
  • Nicole's Papa
    • 3.2 Elite. Boxster. C1.
    • View Profile
Re: Throttle position sensor
« Reply #13 on: 14 June 2018, 22:04:09 »

Getting back to the original point. Out of curiosity I have been out and had a look for the TPS on mine (assuming in the region of front of plenum) but cant find it !  ??? :-[
Logged
Women are like an AR35. lovely things, but nobody really understands how they work.

Migalot

  • Senior Member
  • ****
  • Offline Offline
  • Gender: Male
  • London
  • Posts: 732
    • Omega 2.6 2002
    • View Profile
Re: Throttle position sensor
« Reply #14 on: 14 June 2018, 22:10:47 »

And at risk of repeating myself, where did you buy the crank sensor from? The fact that this cured the issue, and then only for three months tells me two things... 1. It's the problem and 2. That it wasn't a genuine sensor.

Have you a GM part number for the crank sensor, Doc? This site has genuine Siemens sensors, but there are apparently three alternatives:

http://www.lmfvauxhall.co.uk/Crankshaft-Sensor-Omega-V6.html

Cheers.

Logged
Pages: [1] 2 3  All   Go Up
 

Page created in 0.043 seconds with 18 queries.