Xm S1 Rev Counter Going Nuts| Welcome Guest ( Log In | Register ) | Resend Validation Email |
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Xm S1 Rev Counter Going Nuts| 94xm |
Posted: February 08, 2007 11:23 pm
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Member  Group: Members Posts: 19 Member No.: 589 Joined: January 14, 2007  |
Hi,
Just thought i would share this, both my xm series one have had rev counters that have gone nuts at random times. Since owning this Xm i noticed while listening to the radio that it happens when my mobile is polling for a signal or what ever its doing, also happens if i was using the mobile randomly too. Just picking the mobile up and moving it and the needle stops going nuts everytime. On my last xm i nearly changed the rev counter! Cheers -------------------- 1994 2.1TD auto estate.
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| Peter.N. |
Posted: February 08, 2007 11:59 pm
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 Andre's Mate Group: Members Posts: 3414 Member No.: 78 Joined: August 31, 2004 |
It could be that there is a high resistance connection somewhere, probably on the two pin plug connected to the TDC sensor on the gearbox end of the cylinder head. It could have a low enough resistance to be recieving a signal from the sensor but be high enough to allow it to pick up spurious signals.
Peter.N. -------------------- Used to have:
'96 'N' 2.1 td VSX manual estate White RP6695. '01 'Y' 406 GXL Hdi 110 manual estate silver '01 C5 estate 2.0. Hdi 110hp manual Located in Charmouth, Dorset. U.K. Blower transistors MJ 11015 |
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| DerekW |
Posted: February 09, 2007 01:20 am
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Andre's Mate Group: Members Posts: 1320 Member No.: 173 Joined: June 01, 2005 |
Its a Government ploy to stop you using your mobile in the car!
-------------------- 1999 3.0V624v Exclusive Black! (RP8362)
2004 C3 Sensodrive Exclusive 1994 ZX Aura 1.8 auto Location: 5 miles North of Boston, Lincolnshire |
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| Peter.N. |
Posted: February 09, 2007 12:15 pm
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Andre's Mate Group: Members Posts: 3414 Member No.: 78 Joined: August 31, 2004 |
I dont think they are that advanced yet, it would have to stop everything working!
Peter.N. -------------------- Used to have:
'96 'N' 2.1 td VSX manual estate White RP6695. '01 'Y' 406 GXL Hdi 110 manual estate silver '01 C5 estate 2.0. Hdi 110hp manual Located in Charmouth, Dorset. U.K. Blower transistors MJ 11015 |
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| David Hallworth |
Posted: February 09, 2007 07:27 pm
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 Super Member Group: Members Posts: 403 Member No.: 130 Joined: February 27, 2005 |
my xm does this sometimes when i hit the brake pedal, sometimes my rev finger drops to nothing, sometimes it goes round to 6500rpm.
Obviously the engine aint doing that kinda rpm!! I've put it down to the fact that my alternator wasnt working properly. David. -------------------- 1990 V6 SEi Auto - breaking for spares.
1991 V6 SEi Manual - Running - Sold. 1991 V6 24v Manual - Runs but not on the road. 1992 V6 24v Manual - Runs :-) 1996 V6 Xantia Exclusive 58k Miles - Soon to be For Sale. 1996 V6 Xantia Exclusive Breaking for Spares. 1998 V6 24v Exclusive - Runs :-) 1998 Xantia Activa - Runs :-) |
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| Peter.N. |
Posted: February 09, 2007 08:05 pm
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Andre's Mate Group: Members Posts: 3414 Member No.: 78 Joined: August 31, 2004 |
Hi David
On the 2.1 diesels they are driven by the TDC sensor, dont know if all the others are the same. I am sure someone will tell us though! Peter.N. -------------------- Used to have:
'96 'N' 2.1 td VSX manual estate White RP6695. '01 'Y' 406 GXL Hdi 110 manual estate silver '01 C5 estate 2.0. Hdi 110hp manual Located in Charmouth, Dorset. U.K. Blower transistors MJ 11015 |
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| Zaphod |
Posted: February 11, 2007 12:41 pm
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Super Member Group: Members Posts: 369 Member No.: 368 Joined: May 08, 2006 |
Real cars have ignition systems to drive the rev counter!
 Stewart -------------------- Of all the things I have lost I think I miss my mind the most
Half of all 1994 S2 2.0 TCT Exclusive Manuals remaining, where is the other one? 1992 Range Rover V8 Vogue SE LPG 1985 Golf GTI 8v 1975 MG Midget 1959 Austin Healey Sprite |
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| Peter.N. |
Posted: February 11, 2007 03:52 pm
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Andre's Mate Group: Members Posts: 3414 Member No.: 78 Joined: August 31, 2004 |
.....If you can afford to run them!
 Peter.N. -------------------- Used to have:
'96 'N' 2.1 td VSX manual estate White RP6695. '01 'Y' 406 GXL Hdi 110 manual estate silver '01 C5 estate 2.0. Hdi 110hp manual Located in Charmouth, Dorset. U.K. Blower transistors MJ 11015 |
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| Zaphod |
Posted: February 11, 2007 05:26 pm
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Super Member Group: Members Posts: 369 Member No.: 368 Joined: May 08, 2006 |
Thats why I run one, can't afford to run a deisel!. 2.0i, on LPG, 28MPG, at 34 pence a litre (road fuel duty paid) or 12p litre (road fuel duty 'in the post'). I do my own conversions parts ahve been moved from car to car over the years only specific part is the mixer, last one was £45 IIRC
Stewart -------------------- Of all the things I have lost I think I miss my mind the most
Half of all 1994 S2 2.0 TCT Exclusive Manuals remaining, where is the other one? 1992 Range Rover V8 Vogue SE LPG 1985 Golf GTI 8v 1975 MG Midget 1959 Austin Healey Sprite |
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| bigjohnh |
Posted: February 12, 2007 05:16 pm
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Super Member Group: Members Posts: 289 Member No.: 324 Joined: February 13, 2006 |
Stewart,
Have you any experience of LPGing a turbo car? John This post has been edited by bigjohnh on February 12, 2007 05:16 pm -------------------- Currently XMless
1970 Morris Minor Traveller (SORN) 1989 Moto Morini Kanguro (2 wheels and an engine) Fisher Fury Kit Car 1600 Ford Cross Flow (Work in progress) SE London |
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| Zaphod |
Posted: February 13, 2007 01:12 am
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Super Member Group: Members Posts: 369 Member No.: 368 Joined: May 08, 2006 |
Yes, never doing it again!. Actually they can be done, but with sequential multi point system (reasd close to £1000 on parts), trying it with a mixer based system (about £350-£400 worth of parts) is 'troblesome' to say the least, and led in my case to 4 new pistons before it was running right as there is a tendance for the mixutre to go lean whcih in turn melts pistons very rapidly whle traveling at 80 on the M4! ALthough low presure turbos (like the XM I belive) are less troublesome. LPG also gives thepotential for morerather than less power with the turbos, as it has an octane rating of 110 so if you were inclined you could wind up soem silly levels o fboost
Stewart -------------------- Of all the things I have lost I think I miss my mind the most
Half of all 1994 S2 2.0 TCT Exclusive Manuals remaining, where is the other one? 1992 Range Rover V8 Vogue SE LPG 1985 Golf GTI 8v 1975 MG Midget 1959 Austin Healey Sprite |
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| paulxmski |
Posted: February 25, 2007 11:57 pm
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Active Member Group: Members Posts: 47 Member No.: 29 Joined: January 11, 2004 |
On my S1 V6 when I replaced the third sensor along from the left (as you look under the bonnet facing towards the windscreen) the rev counter went beserk and shot right over to the max stop. Removing and replacing the relay drives the rev needle. When I took the battery terminals off and replaced them it went back to zero. It might be something to do with this relay?
-------------------- XMV6SI 1990 - XMV6 SEI 1990
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