Question about 1996 Honda Civic

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No rpm smell gas

No code and spark plug is black

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If you small gas on the spark plug, it's running rich. I would think your issue will be in your ignition. I would check the gap on the spark plug then check to see if it's getting a good spark. Then check your spark plug wires for cracks or corrosion on the terminals, and you can also use a DMM to check the resistance across the plug wire. Resistance should not exceed 0.3 oms. If that looks good then check your coil.

Posted on Apr 22, 2014


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Whats next?

Check for spark by removing the spark plug from the engine. Ground the plug on the metal of the engine. Have someone crank the engine to see if there is a spark. Also after cranking see if you smell gas at the spark plug whole. If you have a spark and smell gas the next step is a compression test. If no gas then check the fuel injector's wires and the injector.

Mar 09, 2014 | 1999 Toyota Corolla

1 Answer

Erratic idle audi

see the diagram attached and proceed and fix it. God bless you

Jul 10, 2013 | Cars & Trucks

1 Answer

Im trying to fix my car can you help me

please go to this site. it will explain in better detail. good-day !

Dec 07, 2011 | 2003 Pontiac Sunfire

1 Answer

I have a 1998 Chevy s10 blazer that is running ruff and shaking and bad smell from exhaust like sulfur.When I step on gas black smoke comes out of exhaust.There are no codes when hooked to code...

Check the spark, it should be blue, if it is yellow than you need to check your ignition system, coil,spark plugs, spark plug wires, dist cap, rotor ect.
Black coming out the exhaust is unburned fuel, when you have the spark plugs out do a compression test.

Jul 23, 2011 | 1999 Chevrolet Blazer

1 Answer

2003 Hyundai Sonata with 4 cyl. PO301 error code. Have replaced spark plugs, wires, coil packs, and mass air flow sensor. Replaced air filter due to heavy gas smell. Car was starting after tapping gas 3...

P0301 - Cylinder 1 Misfire Detected.

Possible Causes:
- Improper spark plug at cylinder #1
- Insufficient compression at cylinder #1
- Incorrect fuel pressure
- The injector circuit is open or shorted at cylinder #1
- Fuel injector #1 may be faulty
- Intake air leak at cylinder

Possible Solutions:
- Perform Injector Service
- Replaced Spark Plug #1
- Replaced Injector #1
- Replaced Ignition Coil #1

Being you have a heavy gas smell I would look into the injectors. If injector #1 is over producing it can cause a misfire. Test your compression and fuel pressure.

Jan 17, 2011 | Hyundai Sonata Cars & Trucks

1 Answer

When accelerator is pressed down the engine stuters until use ease off the pedel. can only use 1/4 to 1/2 throttle.

The most common problem for this is the fuel filter or dirty spark plugs. If it is the plugs you would have a slight miss when idleing or be able to smell gas fumes from exhaust. Also your gas mileage would go down. The fuel filter will cause the vehicle to feel like it will stall and die when you try to accelerate or raise the rpm's in idle. I hope this helps. If you try both and it does not help try pulling the trouble codes and having them checked.

Feb 03, 2010 | 1986 Ford Bronco II

1 Answer

Vehicle smells like gas both inside and out of car after engine is off. Check Engine light is on but no noted deficiences noticed, all fluid levels good. what could be the problem?

If your check engine light is on when the car is running, then that means there is probably a trouble code stored in your vehicles computer. With a code reader, you can find out what the code is. That will direct you to the problem. You can post your code here and we will tell you what it means.
Regarding the 'gas' smell, first check to see if your car is running 'rich'. You can rub your finger inside the tailpipe and see if there is a lot of black soot there, which would indicate its running too rich (too high of a fuel to air mixture). If this is inconclusive to you, remove the spark plugs and check if they are with black soot on them where the pin is. This will tell you how the engine is running in terms of fuel mixture. If they are black, then you have found the problem (fuel injection problem or Oxygen sensor, most likely). The trouble code might also point to this. Other than that, sometimes an exhaust leak can cause fumes to leak up into the car when running. My car had the gas smell problem and it was both a hole in the exhaust under the car and an overly rich fuel mixture. I had black soot inside the tailpipe and black sooty spark plugs and the final problem ended up being a bad oxygen sensor (located on the intake manifold), that was sending an improper signal to the vehicle's computer, thus the reason for the problem.

Sep 24, 2009 | 1996 Dodge Intrepid

2 Answers

Using my OBD II pocket scan diagnostic reader and code P0303 popped up and the book says Cylinder 3 misfire Detected, Cylinder #3 Misfire. what does this mean and actions can i take to repair this...

check the sparkplug and wire for that cylinder first.if the plug smells like gas replace both.if the ceamic part is any other color besides white or tan,(black and sooty{too much fuel},shiney brown{detonation},black and oily{bad valve guide or rings) hope it's just a broken or burnt plug wire. good luck!

Jul 10, 2009 | 1998 Dodge Dakota

1 Answer

Rpms drop and rise while driving and stopping.

anytime you can smell gas, you have a leak, not good to drive if you can smell strong fume and not safe to drive. check all fuel line and fuel filter connection. check gasket on intake manifold and your injector. The rpm goes up and drown erratically, check your distributor connections and the ground wires. If distrubutor has bad ground or conection can cause erratic behavior RPM guage.

May 10, 2009 | 1994 Chevrolet Cavalier

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