Need help on this issue Please. VW Jetta 3 2l 8v, MS 1 Hr11c2 Running in parallel with OEM ECU.
How to rectify, the reverse TPS ADC.
Reverse TPS ADC, MS1 Hr11c2 VW Jetta 3 2l 8v1996
Moderators: jsmcortina, muythaibxr
-
Gavin Lodewick
- Experienced MS/Extra'er
- Posts: 208
- Joined: Thu Feb 02, 2006 1:47 pm
- Location: South Africa
Reverse TPS ADC, MS1 Hr11c2 VW Jetta 3 2l 8v1996
Hi All
Need help on this issue Please. VW Jetta 3 2l 8v, MS 1 Hr11c2 Running in parallel with OEM ECU.
How to rectify, the reverse TPS ADC.
Need help on this issue Please. VW Jetta 3 2l 8v, MS 1 Hr11c2 Running in parallel with OEM ECU.
How to rectify, the reverse TPS ADC.
Re: Reverse TPS ADC, MS1 Hr11c2 VW Jetta 3 2l 8v1996
TPS back to front? Swap Vref (5v) and Ground connections at the TPS. - Michael
-
Gavin Lodewick
- Experienced MS/Extra'er
- Posts: 208
- Joined: Thu Feb 02, 2006 1:47 pm
- Location: South Africa
Re: Reverse TPS ADC, MS1 Hr11c2 VW Jetta 3 2l 8v1996
Gavin Lodewick wrote:Need help on this issue Please. VW Jetta 3 2l 8v, MS 1 Hr11c2 Running in parallel with OEM ECU.
Hi Michael, as I am Running in parallel with OEM ECU, I have join ms1 sig-wire to pin 5 only, no Ground or Vref (5v). Thanks.Michael wrote:TPS back to front? Swap Vref (5v) and Ground connections at the TPS. - Michael
Gavin
Re: Reverse TPS ADC, MS1 Hr11c2 VW Jetta 3 2l 8v1996
so you have high TPS reading when closed throttle and low reading at WOT ?
1978 vw golf gti 16v itb cop full sequential MS2
1992 vw corrado 16v moonlight blue MS2
1992 vw corrado 16v moonlight blue MS2
Re: Reverse TPS ADC, MS1 Hr11c2 VW Jetta 3 2l 8v1996
2Swe's circuit should work OK. I have two further thoughts:
1)You say you have MS sig pin connected to pin 5 only. presumably pin 5 of tps, most TPS only have 3 pins: +ve, sig and ground. However, I have to admit I am not familiar with VW products so........
2) In any case if you are only using the sig wire from MS, then MS has no reference voltage, but will probably see ground via the vehicle metalwork. So the TPS voltage seen by MS will float.
A third and final thought, take care not to get 12v on the MS TPS signal wire, not sure how it would take it!
Best Wishes - Michael
1)You say you have MS sig pin connected to pin 5 only. presumably pin 5 of tps, most TPS only have 3 pins: +ve, sig and ground. However, I have to admit I am not familiar with VW products so........
2) In any case if you are only using the sig wire from MS, then MS has no reference voltage, but will probably see ground via the vehicle metalwork. So the TPS voltage seen by MS will float.
A third and final thought, take care not to get 12v on the MS TPS signal wire, not sure how it would take it!
Best Wishes - Michael
-
Gavin Lodewick
- Experienced MS/Extra'er
- Posts: 208
- Joined: Thu Feb 02, 2006 1:47 pm
- Location: South Africa
Re: Reverse TPS ADC, MS1 Hr11c2 VW Jetta 3 2l 8v1996
Hi. will look into it.Thank.
Gavin
Michael wrote:2Swe's circuit should work OK. I have two further thoughts:
1)You say you have MS sig pin connected to pin 5 only. presumably pin 5 of tps, most TPS only have 3 pins: +ve, sig and ground. However, I have to admit I am not familiar with VW products so........
2) In any case if you are only using the sig wire from MS, then MS has no reference voltage, but will probably see ground via the vehicle metalwork. So the TPS voltage seen by MS will float.
A third and final thought, take care not to get 12v on the MS TPS signal wire, not sure how it would take it!
Best Wishes - Michael
2swe wrote:so you have high TPS reading when closed throttle and low reading at WOT ?
Gavin