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Injectors cheak misfire

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2006 Mazda 6 3.0L. Got a misfire Cyl. #6. Replaced spark plug & coil. Still misfire. Swapped coil and same result. #6 misfire??????????????


misfires are more often from a blocked/faulty injector rather than electronic
pull the injector and clean or replace
check for injector operation and wires

Jan 30, 2017 | Mazda Cars & Trucks

1 Answer

I have a Misfire Detected in the #1 Cylinder ? I replace plug and wire but still has a misfire detected. what do a check next?


misfires are from injector problems as well as electrical problems
probably a faulty injector or dirty tip
2 options
interchange it with another injector to see if the misfire moves
or
get another known good injector and replace it

Jun 05, 2016 | 2001 Ford Ranger

1 Answer

GTI FSI misfire under load?


misfires are also cause from faulty injectors Check/replace the injector as the tip may be partially blocked.

Nov 04, 2014 | Cars & Trucks

1 Answer

Misfiring


code p0303 refers to cyl 3 misfire detected ===causes engine mechanical fault--wiring--ignition/fuel system--injector--ECT/MAF sensor--ECM
code p0316 refers to misfire detected during start up --first 1000 revs===causes --engine mechanical fault--wiring--ignition/furl system--injector
the common fault cause is ignition/ fuel system and injectors so I would be checking fuel pressure and injector systems for clean and wiring connections are good especially on no 3 injector.

Apr 19, 2014 | Mazda 626 Cars & Trucks

1 Answer

Misfire codes are po0300 and po0316 Ford taurus 143000 miles on it


misfiring is also from faulty injectors , dirty injectors and insufficient fuel pressure not just electrics.. Have a pressure test done on the fuel manifold to check pump pressure ,regulator and filters . Check and clean the injectors. run fault codes to determine which cylinder is misfiring to see if it is a injector electrical fault.

Apr 02, 2014 | 2007 Ford Taurus

1 Answer

Do not know how to check injectors on my 1990 lumina 3.1l


For engine misfiring problem check the help links mentioned below. Click the link below to go through the troubleshooting procedure :---- No pulse to injectors? http://technoanswers.blogspot.com/2012/01/no-pulse-to-injectors.html
---------How to Test and Replace Fuel Injectors? http://repairhelpcenter.blogspot.com/2011/11/how-to-test-and-replace-fuel-injectors.html
---------

How to Replace a Fuel Injector
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-fuel-injector.html
--------
Engine misses and truck jumps? Hard to down shift? Issue with high gear only? http://technoanswers.blogspot.in/2012/02/engine-miss-and-truck-jumps-hard-to.html

-----------
Bad miss at idle?

http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html

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While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

------------
Engine Misfire codes for car?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html
Engine Misfire codes?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html

--------------
Misfire on cylinder 4?

http://schematicsdiagram.blogspot.com/2011/12/misfire-on-cylinder-4.html

-----------
Oil on spark plugs and car misfires?

http://technoanswers.blogspot.in/2012/02/oil-on-spark-plugs-and-car-misfires.html

----------

This will help.

Thanks.

Feb 12, 2012 | 1990 Chevrolet Lumina

3 Answers

CODES-PO301-PO303-PO316- CHANGED PLUGS & WIRES. STILL MISS ON START UP, GOES AWAY MOST OF THE TIME ABOVE 1000 R.P.M


P0301 - Cylinder 1 Misfire Detected.

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

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

P0303 - Cylinder 3 Misfire Detected.
Follow info from P0301.

P0316 - Misfire Occurred In The First 1,000 Engine Revolutions.

Causes:
- Damaged CKP sensor.
- Ignition System.
- Fuel Injectors
- Running out of fuel
- Fuel Quality
- Base engine
- Damaged Powertrain Control Module

Solutions:
Usually the P0316 is combine with a P03XX codes. The P03XX code indicates in which cylinder the misfire occurred.

Jan 17, 2011 | 2002 Mercury Sable

1 Answer

Motor running rough. Missing. What are some common problems with the motor?


You could have a faulty fuel injector, a bad spark plug or wire or even a bad coil. The 3.1 liters are notorious for having bad fuel injectors If there is a check engine light then you can get the code and find out which cylinder is misfiring then go from there. Or you could get the vehicle to misfire then pull of each individual injector wire to see which cylinder is misfiring, you will know which one is misfiring because when you disconnect the wire you will not feel any change at all. If you unplug one of the injectors to a cylinder that is not misfiring it will misfire much more.

Dec 22, 2010 | 1999 Pontiac Grand Prix

1 Answer

I have 1996 Dodge Gran Caravan, and it gives me these codes: 27 and 43, what do they mean??


CODE 27 - Injector Control Circuit, output driver does not respond properly to the control signal

Code 27 MIL light options: OBDII
P0201 - Injector #1 Control Circuit
P0202 - Injector #2 Control Circuit
P0203 - Injector #3 Control Circuit
P0204 - Injector #4 Control Circuit
P0205 - Injector #5 Control Circuit
P0206 - Injector #6 Control Circuit

CODE 43 - Cylinder Misfire, or Ignition Primary Circuit

CODE $# MIL options: OBDII
P0300 - Multiple Cylinder Misfire
P0301 - Cylinder #1 Misfire
P0302 - Cylinder #2 Misfire
P0303 - Cylinder #3 Misfire
P0304 - Cylinder #4 Misfire
P0305 - Cylinder #5 Misfire
P0306 - Cylinder #6 Misfire
P0351 - Ignition Coil #1 Primary Circuit
P0352 - Ignition Coil #2 Primary Circuit
P0353 - Ignition Coil #3 Primary Circuit

Feb 03, 2010 | 1996 Dodge Caravan

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