Question about 1998 Honda Accord

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Fuel is to lean

I just put in a cold intake a few months ago now it's saying that the fuel is to lean and that there been a few misfires with the cylinders

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Check fuel system. Bad fuel filter, fuel pump, Oxygen sensor or plugged Catalytic converter. Especially if there are multiple misfires. If it is only on one cylinder then check wires and related firing components.

Posted on Sep 15, 2009

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Put back to stock condition, all original wires must be hooked up for proper emissions, and for computer to function properly, there is probably an item you can buy, check with manufacturer of cold air intake 

Posted on Sep 15, 2009

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1 Answer

System to lean bank, manufacturer control fuel air metering, cylinder misfire detected


Intake or vacum leak will be the first codes 174,171, try idle and spray propane around intake if car idles up, then intake is leaking, otherwise could be a broken vacum line, check with a gauge

Jan 18, 2014 | 2004 Hyundai Tiburon GT V6

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Engine light on and misfiring and want to fix this and get it running smooth


The cylinder misfires cause lean or rich
fuel trim

A constant lean on fuel trim, is a rich condition
driven lean by pcm to correct

If two cylinder are affected & are together or maybe
not ,then smoke the intake for vacuum leaks

A leaking injector is obviously a rich senerio

Converter only works with the O2 Sesnors to report
back the rich or lean to pcm

You need to get rid of the misfires before any fuel control
returns to normal

Mar 08, 2013 | Cars & Trucks

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I put a cold air intake on my 2007 saturn ion 2.2. now i have codes poping up.how do i fix these without putting my factory air box back on: code p0102,p0101,p0300,p0171


The P0102 means Mass or Volume Air Flow Circuit Low Input
The P0101 means Mass or Volume Air Flow Circuit Range/Performance Problem
The P0300 means Random/Multiple Cylinder Misfire Detected
The P0171 means System too Lean (Bank 1)
_________________
Ktag ecu programmer

Sep 25, 2012 | 2007 Saturn ION-2 Quad Coupe

1 Answer

Po104po105po1o6 misfires


First the po 171 is that bank 1 is running lean, as far as the codes po104-106, i think you made a mistake, the mifire codes for cylinders 4-6 would be po304, po305 and po306. the fiurst thing to check would the fuel preasure.

The reason i say fuel pressure is due to the misfiring and lean codes.
If the fuel pressure tests okay then check for intake manifold gasket leak, this is done with a smoke machine or with some throtle body cleaner spray. you will neeed to start the engine and spary around the intake gasket area as you watch for engine speed change.
A scan tool may be needed to watch fuel trim and o2 readings if the intake leak is small.
The other problem could be sparkplug failure or bad coil and last sparkplug wires if this is not a coil on plug system.
Acoil on plug system would be a system with out sparkplug wires going to each sparkplug, instead there is a separte coil on each sparkplug.
If this is a coil on plug ignition system i would start there and swap coils with the other cylinders and see if the misfire moves to those cylinder if it does then bad coils. hope this is helpful , good day

Mar 03, 2012 | 1998 Ford Explorer

1 Answer

Number six cylinder misfire, has spark, fuel & compression


check for an intake manifold vacuum leak on the number six intake runner. It may be getting fuel, but the mixture is too lean to fire with the air leak.

Are you sure the cylinder is getting fuel? The injector may be firing but could be plugged up. The injector could also be leaking---dripping fuel when it should be off. This will cause a rich misfire.

Feb 21, 2011 | 2006 Kia Sorento

2 Answers

I have a 1998 mitsubishi eclipse rs and the check engine code P0301 pd (misfire in cylinder 1). I've put in new spark plugs and wires and the fle injecter is working fine and its still misfiring. Could it...


YEP BAD COIL CLOGGED FUEL INJECTOR AND INTAKE LEAK TO CYLINDER 1.TRY CLEANING FUEL INJECTORS.IF STILL MISFIRE DO A COMPRESSION TEST TO THAT CYLINDER YOU COULD HAVE A MECHANICAL ISSUE.

Dec 16, 2010 | 1998 Mitsubishi Eclipse

1 Answer

Check Engine Light coming on


get the soft ware up grade. and have the coils checked.

Mar 03, 2010 | 2002 BMW Z3

1 Answer

1996 ford windstar 3.8 codes say that cylinders 4 and 6 are misfiring,system too lean bank 1,egr flow insufficient. whats up?


Cylinder misfiring hapens when ignition coil is bad and bad spark plugs.
System to lean is usualy when fuel pump lose pressure or you have blown gasket on intake manifold. Check fuel pressure first.
When EGR flow is insufficient there is EGR valve, sensor and solenoid, could go bad., so you have multiple codes P0171, P0304,P0306, P0401

Feb 21, 2010 | 1996 Ford Windstar

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