Question about 1993 Nissan 300ZX

1 Answer

300zx erratic idle 1993 n/a

Engine starts and runs at idle 850 or so for 1 minute. Then it drops to about 400 goes funk.funk,funk. and goes back up to 850 and repeats this process. no trouble codes. also stumbles till 2500 no load.

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 78 Answers

Your Idle Air Control Valve is at fault. These never set a code when they fail and they always fail.

Check this item out on eBay.

They aren't usually this expensive so search the net and you should find a much better deal.

You shouldn't need to worry about the gasket when replacing this. They usually don't tear and stick to the manifold. If it does tear though you should replace it

Posted on May 23, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

Toyota Rav 4 1997 .Check engine comes on .Codes are P0301,302,303,304116 . What to do.

The engine coolant temperature is high. Your other Codes are for missing cylinders on cylinder 1,2,3,and 4. Get the Codes cleared and start over. Changing the plugs and wires,etc could have generated the missing cylinder Codes.

Autozone,Advance, and Oreilys will scan for free.

Check your engine for an IDLE SPEED CONTROL SOLENOID, which may be in the intake. Or a fuel pressure regulator.

A lot of times people work on the spark side and forget the fuel injectors. They can cause a miss.

Nov 03, 2012 | Toyota Cars & Trucks

2 Answers

I have a 1993 300zx twin turbo that's heavily

you are SURE you have enough fuel pressure? like 60?

Feb 19, 2012 | 1993 Nissan 300ZX

1 Answer

Saturn SL2 does not idle, revs, misses.... Did before I removed

My car was doing this pretty bad and I changed the engine coolant temp sensor and it fixed my problem. Hope this helps!!

Mar 25, 2010 | 1993 Saturn SL2

1 Answer

Long Crank Time When Hot

Timing belt/chain may have been put it slightly off time, when motor rebuild

Jan 13, 2010 | 1993 Dodge Spirit

2 Answers

I have a 93 Nissan 300ZX 5-spd that will periodically stall out when braking to a stop.

the idle on the 300zx is supposed to be around 750-900 with the na being on the high end and turbo on the low end. sometimes when you clutch the revs drop and the engine does not recover enough. raising the idle to around 850 will help dramatically. also it would be a good idea to check for vacuum leaks as a severe enough one could also cause it to stall. another thing to look at would be if you clutch is fully disengaging. once slowing to a stop if the clutch is still catchin a little the car will stall. if you have a turbo car the clutch is vacuum assisted and the booster has been known to go out from time to time. i would investigate the vacuum and clutch booster

pictures of the correct vacuum routing can be found here, good luck bud let me know what you find

Oct 26, 2009 | 1993 Nissan 300ZX

1 Answer

Idle goes down when headlights turned on

Possible weak alternator output or weak battery.

Apr 01, 2009 | 1993 Toyota Corolla

1 Answer

Corolla repair manual

can y tell me what enigne size ?

Mar 23, 2009 | 1993 Toyota Corolla

Not finding what you are looking for?
1993 Nissan 300ZX Logo

Related Topics:

555 people viewed this question

Ask a Question

Usually answered in minutes!

Top Nissan Experts


Level 3 Expert

77499 Answers

Phil Lovisek
Phil Lovisek

Level 3 Expert

726 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Are you a Nissan Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides