running problems 316i
Moderator: martauto
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goose
- E30 Zone Newbie
- Posts: 2
- Joined: Sun Oct 16, 2005 11:00 pm
car starts fine , but as soon as you press throttle goes flat as if being starved of air . seems tps an air flow meter out of sink . any ideas could ecu be at fault ?? any help gratefully recieved . many thanks goose
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Templ8e30
- E30 Zone Addict
- Posts: 2801
- Joined: Mon Jan 10, 2005 11:00 pm
- Location: Ashton-under-Lyne, Lancashire
Sounds like the tps needs setting up or replacing.
The TPS has a micro switch that when closed tells the ECU that it is at idle. When out of adjustment or knackered the ECU doesn't know that you've opened the throttle and won't add the necessary fuel.
If you have a multimeter disconnect the plug under the throttle body and set the meter to resistance.
I can't remember which pins are which but there should be no resistance between two terminals when closed and as soon as the throttle begins to open this should go open circuit. If not then the switch probably needs adjusting by loosening 2 philips screws and turning the switch body until it opens as soon as the throttle starts to open. Set it as close as possible for best results.
Cheers,
Iain T
The TPS has a micro switch that when closed tells the ECU that it is at idle. When out of adjustment or knackered the ECU doesn't know that you've opened the throttle and won't add the necessary fuel.
If you have a multimeter disconnect the plug under the throttle body and set the meter to resistance.
I can't remember which pins are which but there should be no resistance between two terminals when closed and as soon as the throttle begins to open this should go open circuit. If not then the switch probably needs adjusting by loosening 2 philips screws and turning the switch body until it opens as soon as the throttle starts to open. Set it as close as possible for best results.
Cheers,
Iain T
2007 Mazda 6 2.0 estate
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