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85 300zx turbo starting/warm up problem
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katstevens
New User
Nov 14, 2009, 2:12 AM
Post #1 of 2
(2801 views)
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85 300zx turbo starting/warm up problem
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Hello,
This problem has been ongoing for a long time and I can't figure it out. When I start the car it's fine but after about a minute the idle drops very low, almost to the point of dying and starts running really rich. If I hit the accelerator to get the rpms up, it bogs and stutters. But then, as soon as it reaches operating temp, all that stops and it runs fine. I have replaced the cold start sensor and the crank position. I also ran the diags on the computer and came up with nothing. Any ideas? Your help would be much appreciated!
Kathy
Links removed
(This post was edited by Hammer Time on Nov 14, 2009, 7:29 AM)
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Loren Champlain Sr
Veteran
/ Moderator
Nov 14, 2009, 11:37 AM
Post #2 of 2
(2791 views)
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Re: 85 300zx turbo starting/warm up problem
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Kathy; Nissans are notorious for poor connections at the sensors and injectors. Attached is a chart for the coolant temp. sensor which controls fuel delivery according to engine temp. But, check the connectors for corrosion on both the CTS and the IAT (air temp sensor).
Loren
SW Washington
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Attachments:
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CTS chart.gif
(53.0 KB)
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