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What kind of test light i can use to test for spark or misfiring?

1989 nissan d21 2.4L pickup truck engine run like a misfire in more than one cylinder i check for a vaccum leak i havn't found one yet.

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You can use a spark tester (on Amazon for $6)A timing light on each wire at a time or measure resistance of each wire.
You can also run a well insulated grounded screw driver along the running vehicles ignition wires and look for any sparks.Otherwise,if the wires are over 10 years old,replace them.On a cold vehicle that has a steady miss,start it and take the temperature of each exhaust port on the exhaust manifold with a lazer temp reader.When you find a cold exhaust port that's the cyl not doing any work.

Posted on May 01, 2017

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Posted on Jan 02, 2017

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1993 nissan pickup 12 valve running of 3 cyliners. Removed spark plug wires and found that one cylinder was dead, then removed the spark plug wire from this cylinder, grounded it and had spark.


Can you do a compression test?

There may be something amiss with the piston or valve.. and it's usually the exhaust valve that has burnt/split, allowing compression to be kicked straight out of the exhaust. The symptom of a burnt/split exhaust valve is akin to a misfiring spark plug

Apr 23, 2016 | 1993 Nissan Pickup

1 Answer

1994 nissan pickup, runs rough. wont hardly run. cant find the problem.


It could be many different things. Check the vacuum lines. Check spark plugs. Check compression in engine, check fuel lines filter and injectors or carb. It's sounds like a misfire which can be caused by incorrect fuel, spark, or compression. And sometimes they run rough because vacuum pressure is incorrect or line is leaking. Start with the basics and go from there

Aug 28, 2014 | 1994 Nissan Pickup

1 Answer

96 nissan P/U 2WD, feels like missing cyclinder should I replace EGR value?


Disable the EGR valve and test. If issue is resolved you have 3 plugged EGR ports and all the EGR flow is being routed to # 4 cylinder resulting in misfire or the EGR valve is sticking open at times though you probably would not feel a misfire except @ idle & take-off.

Jul 26, 2014 | 1996 Nissan Pickup

2 Answers

1994 nissan runs rough when you take off.


You probably can't but if it's running rough on acceleration under load, the first suspect is a dirty fuel filter.

Jun 23, 2014 | 1996 Oldsmobile Cutlass Supreme Coupe

1 Answer

2000 nissan frontier, started missing engine light came on so we replaced plugs and wires and reset light runs better but still has a little miss... any other suggestions


misfire, has many cause, i have 50 reason list. for get that.
1: bad engine compression, or other major engine issues. mech.
2:bad spark
3: bad fueling. (too much or too little)

it only takes a few tests to find which it is, and in that order.
above assumes, 13.3 to 14.7v at the EFI system at all times running.
and EGR is not leaking.
what does engine light mean.
are you saying the CEL , check (service) engine light glows running? if yes ? why not scan it and report all DTC codes present. P0300 is random misfire. and P0301 is #1 cyl misfire.
as 2 examples.

Oct 08, 2013 | 2001 Nissan Frontier Crew Cab

1 Answer

Missing,viborating


Misfire could be a number of things:
a) spark plugs - change them if used over 15K miles - inspect/regap.
b) spark plug wires - change them if over 15K miles - inspect
c) ECM (electronic control module) - test with HEI (high energy ignition) tester.

The vibrating tells me that the engine is running on less than its normal compliment of cylinders - the shaking is produced by the imbalance caused in the engine by one (or more) cylinder(s)
not firing at all.

The "Check Engine" light probably is coming on due the the misfire condition. Go to Pep Boys or
Advance Auto Pats, where they'll tell you (free) your codes causing the "Check Engine' light to be
lit - the code coming from your truck's computer will probably be one or more of:
P0300 - Random/Multiple Cylinder misfire detected
P0301 - Cylinder 1 misfire detected
P0302 - Cylinder 2 misfire detected
P0303 - Cylinder 3 misfire detected
P0304 - Cylinder 4 misfire detected
P0305 - Cylinder 5 misfire detected
P0306 - Cylinder 6 misfire detected
P0307 - Cylinder 7 misfire detected
P0308 - Cylinder 8 misfire detected
P0313 - Misfire detected with low fuel

Jun 23, 2011 | 2009 Ford F-150

1 Answer

Vehicle missing,shaking,engine light comes on


Misfire could be a number of things:
a) spark plugs - change them if used over 15K miles - inspect/regap.
b) spark plug wires - change them if over 15K miles - inspect
c) ECM (electronic control module) - test with HEI (high energy ignition) tester.

The shaking tells me that the engine is running on less than its normal compliment of cylinders - the shaking is produced by the imbalance caused in the engine by one (or more) cylinder(s)
not firing at all.

The "Check Engine" light probably is coming on due the the misfire condition. Go to Pep Boys or
Advance Auto Pats, where they'll tell you (free) your codes causing the "Check Engine' light to be
lit - the code coming from your truck's computer will probably be one or more of:
P0300 - Random/Multiple Cylinder misfire detected
P0301 - Cylinder 1 misfire detected
P0302 - Cylinder 2 misfire detected
P0303 - Cylinder 3 misfire detected
P0304 - Cylinder 4 misfire detected
P0305 - Cylinder 5 misfire detected
P0306 - Cylinder 6 misfire detected
P0307 - Cylinder 7 misfire detected
P0308 - Cylinder 8 misfire detected
P0313 - Misfire detected with low fuel

Jun 23, 2011 | 2004 Ford F150

1 Answer

My 86 nissan pickup engine keeps missfiring. How do i fix it? what could be the problem?


when i had a misfire i took it to autozone and they put it on the machine, that told me which cylinder had the misfire and i just put in a new spark plug. I would give it a tune up and this will eliminate any other problems too.

Apr 24, 2010 | 1986 Nissan Pickup 4WD 1986

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