Question about 1990 Nissan Stanza

Open Question

1990 Stanza wont idle or drive

KA24E 2.4L engine
Idles at 3-400rpms wont accelerate smoothly although if you press the accelerator slowly you can hold the accelerator at a place where it will rev up past idle then you can get it up past 2000 rpms

Have replaced the spark plug wires, plugs, cap and rotor, fuel and air filters, engine coolant sensor, fuel pressure regulator, throttle position sensor, fuel hoses, egr valve gasket, intake manifold and plenum gasskets, most of the vacuum hoses, pcv valve

Have cleaned and tested MAF sensor, Air temps sensor, IACV, AAV, EGRC -BPT valve, EGR valve, PAIR valve, scv valves and solenoid,throttle valve, vehicle speed sensor, fuel pump and tank filter, pumped out all gas and filled with fresh gas. Removed exhaust pipe from header and operated to rule out restriction.

I'm getting no codes, but the computer seems to be working because i can disconnect the various sensors and get it to throw the proper codes.

I have two questions to ask someone who knows:
1. Some times when the ignition is on while the engine is off , there is a buzing sound. it goes away when i move the throttle lever. Ihave a stethoscope and the sound seems to be coming from the transmission.
Is this normal it doesnt seem so.
2. When testing the power transistor- the manual sez you should have infinity between terminals a and b, and a and c, but neither infinity or zero between b and c. what if you have a momentary reading, 120 to 180 ohms, then it goes to infinity? is the tranistor good? it costs $120, so i need to be sure.


Posted by on


5 Suggested Answers

  • 2 Answers

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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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 repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

  • 625 Answers

SOURCE: 91 nissan Sentra losses power at highway speeds

remove the front 02sensor and drive the car like that, remove means complety take it apart from exaust, if problem goes away or gets so much better then your catalitic converter at the exaust is restricted and need a new one

Posted on Jun 19, 2008

  • 5763 Answers

SOURCE: I have replaced EGR,pvc,plugs,wireset, cap

check aux air control valve , thats what controls the idle it may be bad,also with that kind of mileage i would replace the mass air flow sensor ,do that first, good luck , the mass air flow sensor has alot to do with your gas mileage .

Posted on Nov 07, 2009

  • 147 Answers

SOURCE: replaced mass air flow sensor, fuel filter, air

check timing make sure it;s ok . second check your exhaust system if it;s close , start accilerate for 3 min. then look all exhaust pipe (silencer) if there is difrent coler . check Oxgen sensor it;s ok .
and if you have no enough fuel presure try close the return line temporary . maf, sensor only when there it is highand low accilerator.

Posted on Jun 23, 2011

  • 2187 Answers

SOURCE: 2002 Nissan Xterra Supercharge 3.3L

Check the condition of the plugs you have installed. See if you can find one which has an irregular color. The spark plug should be dry and brown in color. The problem could be just in one or a few cylinders. More than one cylinder may mean a problem with the ignition coil. If it were just one we can isolate it into the components connected to the cylinder.

If you have the SES light on as well, it may be a bad O2 sensor or a bad catalytic converter. Check for the wiring that goes to the O2 sensor. The computer may not be getting the correct reading on how much fuel burned causing the misfire.

Posted on Jul 18, 2011

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

2004 ford ranger accelerates on it's own.

Chances are you have some sort of engine vacuum leak or a faulty air bypass idle speed control valve

Mar 22, 2018 | Ford Cars & Trucks

1 Answer

Idles fine, but at 35 mph and above why won't it hold speed?

That should still be under a warranty!

Acceleration problem - is it so tough? - Car Forums and Automotive ... > ... > Buick > Century
Once I reach wanted cruising speed of 35 mph or above (and the car ... At that point I keep pressing pedal slowly but car does not accelerate or needs eternity to speed ...Fuel pressure within specs (40 psi in idle) and fuel pressure regulator holds ... "The 3100 V-6 engine is mated to a 4T60E four-speed automatic overdrive ...

Sep 27, 2015 | Cars & Trucks

1 Answer

Engine revs while constant acceleration

some of the computer have a rev limiter built in and it would give you what you are writing about there my not be anything wrong

Apr 04, 2014 | 2001 Chevrolet Impala

1 Answer

1990 ford bronco with fuel injected 302 idles and revs fine out of gear but has loss of power and pings when in gear and accelerating...

First thing to try would be different fuel. Use a fuel stabilizer and fill with good gas. see if that helps. Also, check the fuel pressure.

Nov 11, 2013 | 1990 Ford Bronco

1 Answer

96 breeze 2.4 l cat convertor plugged? rough idle - wont accelerate beyond fast idle and stalls

You can add whats known as a "Test Pipe" To verifie that is the issue, Or simply disconnect the cat and drive it around the block. Although you can bypass it, Its NOT reccomended you do so. Hope this helps..

Oct 27, 2012 | Cars & Trucks

1 Answer

Engine idles but does not accelerate when pressing on the gas pedal?

what car is it? your car using carb or fuel injection

Jul 27, 2012 | 1995 Nissan Altima

2 Answers

I have a 1990 mitsubishi magna sedan with automatic transmission. It has a carburetor rather than the fuel injection and has traveled very low kilometers for its age. The problem I have is that when...

ya..accelerator pump is the see this problem..turn off your the air cleaner and see from above the carburetor and look inside...then pull the accelerator cable...if a healthy carb you can clearly see the carb squirting fuel..if you dont see any or poor squrting that is the problem...need replace or try carburetor cleaning to unblock the squirt hole...

Nov 23, 2009 | 1987 Mitsubishi Passenger

1 Answer

1990 olds cearia 2.5

Most likely cause is a broken valve spring on one of the intake valves. Seat pressure is light enough to idle smooth but on acceleration the dynamics increase the pressures and the spring can not keep up. Hangs the valve open breifly and you get a backfire through the TBI.
Hope this helps.
RPM Northwest

Dec 01, 2008 | 1990 Oldsmobile Cutlass Ciera

Not finding what you are looking for?
1990 Nissan Stanza Logo

Related Topics:

83 people viewed this question

Ask a Question

Usually answered in minutes!

Top Nissan Experts


Level 3 Expert

79847 Answers

Phil Lovisek
Phil Lovisek

Level 3 Expert

726 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

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

Answer questions

Manuals & User Guides