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1981 280ZX Turbo cold idle prob...

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Old 12-17-2011 | 06:57 PM
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md90036's Avatar
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1981 280ZX Turbo cold idle prob...

Hi All I am new to this forum well here is the prob..on a cold start basically the cars rpm is around 900 drops low and stalls when the car warms to op temp it;s stable at around 800 it feels as it is running rich and when reved it may sputter i quickly looked under the engine i am thinking to clean the injectors i did remove the oil cap and the engine stalled ? Any good input is great ful... and yes happy holidays...
Old 12-17-2011 | 09:27 PM
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NismoPick's Avatar
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From: Wild Wild West, UTAH!
Welcome to ZDriver!

Check the air regulator on the top center of the intake manifold.

And click: www.xenons130.com/reference
Old 12-18-2011 | 05:34 PM
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Hi and thanks for the input i pulled the power going to the air reg i could not notice a dif so i guess it looks to be a prob. this car is now my proj car i am use to working on older triumphs this is a little different is there a way way to read the codes off the eccs with out a reader or do you know of a reasonable price decoder? i think i will prob have to change all the senors and check the injectors..
Old 12-18-2011 | 07:34 PM
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From: Mill Creek WA
the s130 is actually fairly bulletproof so I'd do tuneup stuff first. clean the ecu, afm and tps connectors with caig deoxit. Do a vacuum leak check. check the timing. replace dizzy cap and rotor. Be sure you have a battery in good shape (do a load test) be sure the battery cables are good. clean and free of corrosion on both ends. any one size fit all clamp on wire type terminals then scrap the cable and get new ones. there should be a ground cable going to the body about a foot below the battery then to the starter. grounding thru the starter is not reliable. No codes. about the only sensor that gives trouble is the chts. vacuum leaks and poor quality electricity are problems on these cars. The 81 turbo had the cas on the front of the engine and that sometimes gets out of adjustment. download the fsm from xenon it will be a big help. if it is running probably not that much wrong with it.
Old 12-18-2011 | 09:23 PM
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Hi RogerZ I will take that advice to deox my connectors the car does start and run it is running rich and vacum issues seem to be there i did pull the power from the air reg and there was no deference i also pulled power from the injectors and note not much deference when pulling some??

So
1. no dif when pulling the power from the air reg
2.no dif when pulling the power of some fuel injectors..
3. the idle to me is slow at cold tries to to be at around 800 but drops and stalls unless i give gas to warm the car then manages to stable at 800 but still feels iffy like vacum issue

by the way i am in the los angeles area.. if there is anyone near by ??
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