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1994 3.2 Isuzu it has a misfire it run like the timeing is fast bad mileage voltage to map is at 4.1 v. Not 5. What do I do

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  • Isuzu Master
  • 20,706 Answers

Cam belt old? they slip, and run real bad. if at all.
map , key off or running.? running that is wrong voltage.
is vacuum bouncing?

Posted on Dec 23, 2016


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Posted on Jan 02, 2017

  • 51 Answers

SOURCE: 2005 chevy colorado runs rough and gets bad gas mileage.

Sounds like it needs spark plugs and wires, and a fuel system treatment.

Posted on Oct 08, 2008

  • 3113 Answers

SOURCE: 2004 Isuzu Rodeo 3.5ltr 4X4 hesitation/misfire acceleration

The upper intake gaskets may be leaking. They are made of plastic and metal and will leak air. Do not remove the cover on very top of manifold when changing.

Posted on Jul 24, 2009

  • 74 Answers

SOURCE: 1991 isuzu pick up floods out runs bad

Have you reset the computer
from another site
I was told that it is the screw on the backside of the speedo cluster that has KSW on it. I think?Move it tothe other hole that has KSW on it. And if I'm right that should take care of it. Let me know how it goes.

Posted on Sep 19, 2009

  • 7353 Answers

SOURCE: misfire on cylinder 4

1985???? are you sure????

Posted on Sep 25, 2009

  • 22306 Answers

SOURCE: 2004 isuzu rodeo 3.5 will not start no codes was

throw you boy racer scanner away ,this vehicle cannot be read ,it is one of the first with encrypted software ,dealer only

Posted on Jan 18, 2010

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1 Answer

1994 Isuzu 3.2 no. 5. And 2. Having a misfire. And it has no power bad gas mileage what the hall is going on with this car

at 22 years old it could any number of things .get the car scanned for codes and fix the things it finds . also check the catalytic convertor if the plug up the vehicle will not run well

Dec 22, 2016 | Isuzu Cars & Trucks

1 Answer

I have code 42 on my 1991 Isuzu trooper 2.8 6 cylinder what part needs replacing

engine runs perfect. no misfiring at all?>??????
the computer dont know,
all it knows, is a reading fails.
in electroncs we do more testing
it can be bad wires. bad connections or bad sensors.
we use a voltmeter do check this, or a scope if fast moving signal.
1991 2.8L

"Electronic Spark Timing Circuit
Specific to 1992-93 models only.
Indicates that the ECM believes the Ignition Module has failed.
Check the wires and connectors between the Distributor and the ECM."

google finds top anwser here

best answer ive ever seen, and for old cars, had to find,
most folks long forgot ..24 years ago
and books long ago in land fill....

Dec 13, 2015 | Isuzu Cars & Trucks

2 Answers

My 1994 suzuki swift, keeps vibrating as if it is going to shut off when i stop. What causes that?

sticking IAC or throttle blade, bad tune u parts, hanging EGR, bad engine mounts.

Jun 10, 2015 | 1994 Suzuki Swift

1 Answer

Engine runs rough after a few miles

Easy way to check plugs wires while driving, get 4 or 6 small neon lamps depending on how many cylinders,the neon lamps used in appliances to show they are on are good NOT LEDs.
Remove resistors from neon and connect one side of neon lamps together and earth to body, take other side of each lamp and solder long single telephonr wire and wind about 10 turns around each plug wire insulation a little way from plug leave end of this wire disconnected. make sure the end of wire does not earth anywhere on body leave unconnected. the high voltage going through plug wire will induce enough voltage to fire neon and show plug works if one neon does not flicker as plug fires it the bad one.
This will only show electrical misfire not injector problem.
The best time to do this test is at night neons will flicker bright at night. As a mechanic how to check injector and injector voltage.

Jun 28, 2017 | 1994 Isuzu Rodeo

1 Answer

I have a 2002 Dodge Intrepid - My engine light keeps coming on and the computer says it is PO108 - Can you tell me what the approximate cost would be to fix this problem?

P0108 = MAP sensor circuit high voltage

The MAP sensor communicates the barometric pressure inside the intake manifold to the ecm.

This code can indicate either a fault in the MAP (manifold absolute pressure) sensor, or a possible vacuum leak, either from a hose or the intake gasket.

I would NOT drive your car until this is fixed, especially if its running bad. Erroneous information from the sensor can cause bad mileage, misfires, rich or lean running, which can cause catalytic converter or valve damage if left untreated.

they are easy to replace, a new one should run less than $125, and they are fairly easy to find used in the local junkyard.

Jan 25, 2011 | Dodge Intrepid Cars & Trucks

1 Answer

Where is MAF sensor on 1994 isuzu rodeo Runs rough

The sensor should be right there where the intake air duct meets the air filter housing.
That oil down in the spark plug tube is most likely from a leaking valve gover gasket. Oil in there can and will cause misfires.

Oct 07, 2010 | 1994 Isuzu Rodeo

1 Answer

2004 Isuzu Rodeo 3.5ltr 4X4 hesitation/misfire acceleration

The upper intake gaskets may be leaking. They are made of plastic and metal and will leak air. Do not remove the cover on very top of manifold when changing.

Jul 24, 2009 | Isuzu Rodeo Cars & Trucks

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