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high idle help

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Old 02-11-2010, 10:20 AM
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high idle help

car idles round 1500 how can i fix this or is this normall?
the car also seems like it runs rich, its a TB 350
Old 02-12-2010, 07:40 PM
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Car: 82 S10, 83 280ZX, 84 Z28
Engine: 355 smallblocks..na, 2.8 turbo
Transmission: 85:th350, 84:700R4
Axle/Gears: 85:ford9 4.85, 84:stock 3.24
Re: high idle help

what kind of tach are you using. stock tachs on 3rd gens have a tendency to be very inaccurate over time.
Old 02-13-2010, 01:31 PM
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Re: high idle help

im useing the stock and a aftermarket tach i dont know how he wired it tho,the guy who owned it before wired the tach and the Gauges,they both read about the same and when im in last gear going slow and my rmp are at 1000 the car will want to stall idk if thats normal
Old 02-13-2010, 01:37 PM
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Car: 82 S10, 83 280ZX, 84 Z28
Engine: 355 smallblocks..na, 2.8 turbo
Transmission: 85:th350, 84:700R4
Axle/Gears: 85:ford9 4.85, 84:stock 3.24
Re: high idle help

do you have any codes? is the throttle binding?
Old 02-13-2010, 01:50 PM
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Re: high idle help

how can you find out if your getting codes?and no i dont think throttle binding,
Old 02-13-2010, 02:32 PM
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Car: 90 formula
Transmission: auto
Re: high idle help

more info about the car wouldn't hurt but telling by your name its an 89 iroc.

instead of me explaining ill give you the link that would help.

https://www.thirdgen.org/service-eng...ht-error-codes
Old 02-13-2010, 02:35 PM
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Re: high idle help

yeah its a 1989 irocz vortec 350 motor 5 speed, just by the sound of the motor theres just no way its idleing at 1500
Old 02-14-2010, 02:09 PM
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Re: high idle help

yeah im not getting any codes
Old 02-14-2010, 03:42 PM
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Car: 82 S10, 83 280ZX, 84 Z28
Engine: 355 smallblocks..na, 2.8 turbo
Transmission: 85:th350, 84:700R4
Axle/Gears: 85:ford9 4.85, 84:stock 3.24
Re: high idle help

check for vacuum leaks. make sure the pcv system is plumbed correctly. also make sure the timing is in spec
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