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Apr 16, 2020 17:27:27 GMT
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My Astra has recently started idling at 2k rpm, and is very slow to return to idle after putting your foot down. I've checked all the linkages, they're all free, I've changed the idle control valve with a new one, and I cant find any air leaks anywhere. I did find that the coolant temperature sensor seemed loose, and when I pulled the plug the internals came with it, that's now put the eml on, but having bridged the pins it tuns like curse word and still idles at 2-3k. What am I missing? I've got a new sensor ordered but I don't think it was that anyway, I'm at a loss now.
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Rich
Club Retro Rides Member
Posts: 6,234 
Club RR Member Number: 160
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Astra Mk3 Idle SpeedRich
@foxmcintyre
Club Retro Rides Member 160
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Apr 16, 2020 17:35:13 GMT
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My Astra has recently started idling at 2k rpm, and is very slow to return to idle after putting your foot down. I've checked all the linkages, they're all free, I've changed the idle control valve with a new one, and I cant find any air leaks anywhere. I did find that the coolant temperature sensor seemed loose, and when I pulled the plug the internals came with it, that's now put the eml on, but having bridged the pins it tuns like curse word and still idles at 2-3k. What am I missing? I've got a new sensor ordered but I don't think it was that anyway, I'm at a loss now. Sounds plausible that that could be your issue, erroneously sending a faulty signal that the Ecu can’t interpret properly. Best bet obviously is replace and retest. I’ve had Vauxhall’s give very funny issues for failed CTS. |
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Apr 19, 2020 19:18:18 GMT
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New sensor fitted, still doing it  at a bit of a loss now. Only way I can bring it down is adjusting the distributor, but this obviously makes it run crappy through the rev range, plus it was fine a week ago so I don't want to adjust to cater for it. |
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at a bit of a loss now. Only way I can bring it down is adjusting the distributor, but this obviously makes it run crappy through the rev range, plus it was fine a week ago so I don't want to adjust to cater for it.