Question about 1990 Nissan Pathfinder

1 Answer

Car came to stop choking and low voltage

1st - I live in Costa Rica - not a hotbed of parts and mechanics - that being said - car was going along nicely at 55mi/hr when it began to miss- choke loose speed - amp light on and then quit. I suspected bad gas - 27 mi since fill us - we have changed fuel filter - didn't help - sounds like its only hitting on about 2 cylinders - now at mechanic - he has a pathfinder - he says the computer is bad? What do you think? He says the computer will be $700 plus labor--I'm wondering about sensors - fouled fuel injectors - any other than computer - if he plugged this in for diagnostic would it show computer??

Posted by on

  • mike watson
    mike watson May 11, 2010

    I would try giving it spark plugs'and wires first.does it have a distributor cap and rotor also?Some have just a coil pack system with no cap or rotor.



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Nissan Master
  • 2,019 Answers

Not likely the computer because that would be equally bad on all cylinders.

When you took the filter out, you should have tapped the input side on the ground, looking to see if water came out. You could still easily have water problems, because water is a lot stickier than gas, and causes all sort of problems.

I would suggest pulling the injectors out, withhout disconnecting the fuel. Then watch then squirt. Check volumn and spray pattern. Compare.

If you don't want to pull them, you could just try running it on spray starting fluid for 10 seconds or so, to see if it improves and is a fuel problem.

If not, then it is an electrical problem.
Check the spark at each plug wire, with a spare sparkplug grounded. Should be a good color and sound. Again, compare.
If the spark is bad, then you still have lots of options, but get back to me and I will say more.

If the spark is not bad, then pull the plugs.
Look to see if wet with gas, water, or fouled with carbon.
If the fuel injection stuck open, you could quickly fouled out the plugs with carbon.

But you could have also blown a head gasket or cracked an intake manifold.
I need to know the obvious before I can get into more detail.
For example, if you developed a manifold leak, I would suggest checking with a vacuum guage or listening with a hose.

At $700, I would consider just switching to a carb conversion.
Fuel injection gets better mileage, but carbs are more fun.

Posted on Feb 03, 2010


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

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


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Where can i find the 8 ohm speaker out cable connector

Any Radio Shack will have any connectors you need. Try typing in your address bar RadioShack com without any spaces.

Nov 26, 2017 | Cars & Trucks

1 Answer

How to set the user manual, the area and time in my Hisense tv?

Have you tried this link to download your manual?

Can you provide the make and model information so we can assist you better?

Apr 23, 2015 | Cars & Trucks

1 Answer

Have 1999 Montero 4M4T 2800 in Costa Rica. How many rows are required in radiator? 3 new head gaskets, re-built motor TWICE, new hose BEHIND motor or radiator, new cap, NOW mechanic says he WON'T put in...

have cooling system pressure tested for external and internal-combustion gas leak that is interfering with the normal engine water circulation. You may have a warped cylinder head. remove and replace thermostat only when it is defective but replace with a new one.

May 14, 2014 | Mitsubishi Cars & Trucks

1 Answer

My old SUBARU EA71, 1600, when started for about

try changing your oil for synthetic some thime work ...other wise ,change your oil pump ...same time change your wather pump and your timing belt ...same job!

Oct 08, 2009 | 1998 Subaru Forester

1 Answer

I have a 1992 Suzuki Sidekick with 133000 miles on it which seems to use 1 quart of coolent every 500 miles which I can not determine the cause---oil is clean, no white exaust, no leaks -it gets driven...

dropping level where, the rad top cap neck?
or that silly side tanks, that fail. (hoses bad)
if the side expansion tank drops (it will every cool down)
and goes up hot its ok,, its doing its job.
if the exp, goes dry , the then you have a breach.

yes its going somewhere,
you do know that for a fact.
here is the list
1: to the ground.
2: to the passengers does(footwells, heater core not baypassed)
3: to the engine oil pan, milky oil
4: a/t trans same dead, milky ATF
5: rad cap bad and vacuum breaker bad, in it,
6: side exp, tanks main tube missing cracked or fell off.
7: engine is eating, bad headgasket or crecked head, etc.

Mar 17, 2017 | 1992 Suzuki Sidekick

2 Answers

Need a 2006 mitusbishi owners manual

I got my book from 
good luck  Grace

Nov 30, 2008 | 2002 Mitsubishi Montero

2 Answers

Air is not blowing cold

All blend air doors moving as they should?

Nov 05, 2008 | 1999 Dodge Durango

1 Answer

Air conditioning compressor

the missing part could be the cover... its ok , not cooling very well could be:-
1, aircon fan not working
2, system need to be service
3, need to add air-con gas

for air-con works only in full position.... need to change the switch.. its faulty.

Oct 19, 2008 | 1988 Daihatsu Charade

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

Related Topics:

32 people viewed this question

Ask a Question

Usually answered in minutes!

Top Nissan Experts


Level 3 Expert

79865 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