Question about 1991 Nissan 300ZX

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Where is the connector used to pull codes for a 1991 Nissan 300zx

Adjusted idle

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  • 268 Answers

According to OBD standards it should be reachable when you are sitting in the driver seat. Since it is made before 1997 it is a OBD1 not OBD2 connector.

Posted on Dec 01, 2014

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Posted on Jan 02, 2017

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SOURCE: 1984 nissan 300zx turbo 50th AE

it is adjusted by the idle screw on the aac valve located on the plenum

Posted on Jul 01, 2008

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SOURCE: timing on a 1991 nissan 300zx

There is no means of setting the timing if you are referring to a conventional timing light. The engine is designed with sensors that sense the angle of the camshafts in relationship to the crankshaft and whether it is on the intake or exhaust stroke on the #1 cylinder. This design is actually a little more complex than that because it has variable valve timing which means that the angle in which the camshafts open and close the valves, change with RPM's This give the engine the best of both worlds. It's like have an engine with cams designed for torque at low RPM and a set of cams designed for HP with a free breathing quick revving engine you would have on a race course. The ECM is constantly changing the timing and injector pulse width based on many sources of input, from, the O2 sensor, air flow, air temp, coolant temp, fuel pressure, RPM's and a host of other inputs.
SO>>>>>>>>>>>> in a manner of speaking, unless you are making reference to setting up the timing chain, everything else is under control by the ECM and related components.

Posted on Mar 25, 2009

memturbo
  • 226 Answers

SOURCE: 1991 Nissan 300ZX fuse box diagram needed

first here is the service manual http://www.300zx-twinturbo.com/cgi-bin/manual.cgi

next is the kick panel http://209.85.62.26/12640/0/upload/p979648.jpg

These should be right or very close .

Posted on Mar 27, 2009

GasparMacari
  • 166 Answers

SOURCE: 1993 Nissan 300ZX idles high 1800rpm cold or hot.

yes, thats the typical symptom of a IAC valve giving you trouble, try cleaning it up but ull probabbly will have to replace it
have fun
hope this helps

Posted on Nov 11, 2009

  • 103 Answers

SOURCE: easiest way to fix lifter tick/tap on a 1991 300zx

open the valve cover and feel all your lifters to see which is loose.

spin your push rod with your fingers while tightening your rocker arm(should be 5/8) once you can not spin the push rod any more give it 3/4 of a turn and your good to go repeat for any loose rocker arms.

Posted on Jan 29, 2010

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Why does 1991 nissan 300 zx die when the motor warms up?


Is there a MIL on, what is the code if so. May very well be a coolant temp sensor or connector corroded.

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1993 Nissan 300ZX idles high 1800rpm cold or hot.


yes, thats the typical symptom of a IAC valve giving you trouble, try cleaning it up but ull probabbly will have to replace it
have fun
hope this helps

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Hi I havw question how many gears have 1991 nissan 300 zx tt automatic and when at chenging gears (rev) I heard around 4000rpm.


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shift points should be under 4krpm, with light driving. my 300zx non-turbo usually shifts around 2-3K.

throttle position sensor could need adjustment or replacement. trans fluid should be checked to see if it's in good shape and full.

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What is the idle switch on a 1986 300zx that ecu code 23 refers to?


An idle switch regulator also known as a idle air control valve a code 23 for a Nissan 1986 300zx is located on the intake in the center on the passenger side of the Z it has 1 wiring harness and two hose placements one on the front and one on the back difficulty taking this off little if any.

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1 Answer

1984 nissan 300zx turbo 50th AE


it is adjusted by the idle screw on the aac valve located on the plenum

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