Question about 1990 Chevrolet Lumina

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

Having trouble misfiring on #5 cylinder

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  • Chevrolet Master
  • 5,370 Answers

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

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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

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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

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Oil on spark plugs and car misfires?

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

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This will help.

Thanks.

Posted on Feb 19, 2012

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 14036 Answers

SOURCE: Chevy 3500 Express truck. fuel problem?

IF YOU GOT CYLINDER MISFIRE.OR OPEN FUEL INJECTOR.THAT WILL CAUSE THE PCM TO ENRICHEN FUEL MIXTURE.TO ADJUST TO DEAD CYLINDER.WHICH ACT AS A LARGE VACUUM LEAK.THATS WHY YOUR EXHAUST TAIL PIPES HAS A RAW FUEL SMELL AND WHITE SMOKES.

Posted on Sep 03, 2009

  • 5 Answers

SOURCE: 2003 Chevy Venture misfiring

The injector is a good possibility, although you should check for spark in the wire first, as the electrical is the weakest link in the system. Put a spare plug in the end of the wire with the plug resting on metal, then have someone crank the van to see if you have spark that far, test and replace spark plug, (do not get shocked!) then look into a new injector or a good cleaning.

Posted on Jul 17, 2009

moparownr
  • 667 Answers

SOURCE: CYLINDER #6 Misfire

yes, you should remove and clean and test, and or replace it

Posted on Apr 01, 2009

  • 12 Answers

SOURCE: 200 Chevy Tahoe 5.7L

Do you have any engines codes like P 0300. Sounds like ignition coils ,check input wires to coils if okay replace both coils.I have seen this few times

Posted on Apr 12, 2009

roniecon
  • 6826 Answers

SOURCE: cylinder 2 misfire on a chevy 01 silverado changed

The ecm has the driver for that cylinder,make sure the connection is good,if it is,replace the ecm

Posted on Jun 01, 2010

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did you check the spark plug wire to #2 cylinder?
did check the #2 cyl pressure?
did you check the#2 injector for possible clogged or leaky injector?

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If you have replaced the ignition components, that would leave compression and fuel. Your truck has two injectors, one for each bank of cylinders. So one injector could be weak and causing a lean mixture for 4 of the 8 cylinders.
Normally you would perform a compression test on all 8 cylinders and then average them out. Each cylinder should be within 10 percent of the others.

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Acura mdx 2001 ingine codes p1399 andp300 as well others codes 305


All these codes indicate you have a misfire on cylinder number 5.
P1399/P0300 - Random/Multiple Cylinder Misfire Detected
P0305 - Cylinder #5 Misfire Detected

Causes:
- Improper spark plug at cylinder #5
- Insufficient compression at cylinder #5
- Incorrect fuel pressure
- The injector circuit is open or shorted at cylinder #5
- Fuel injector #5 may be faulty
- Intake air leak at cylinder head

Solutions:
- Perform Injector Service
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- Replace Injector #5
- Replace Ignition Coil #5

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2002 ford escape 3.0L DTC P0305and P0306 what would you ck


P0305 - Cylinder 5 Misfire Detected
P0306 - Cylinder 6 Misfire Detected

When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position (CKP) sensor signal to vary, The Powertrain Control Module (PCM) or Electronic Control Module (ECM) can determine that a misfire is occurring.

When is the code detected?
- Engine Cylinder #5 and #6 is Misfiring.

Symptoms:
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/loss of power
- Hard start
- Engine hesitation

Possible Causes:
- Improper spark plug at cylinder #5 and #6
- Insufficient compression at cylinder #5 and #6
- Incorrect fuel pressure
- The injector circuit is open or shorted at cylinder #5 and #6
- Fuel injector #5 and #6 may be faulty
- Intake air leak at cyli

Possible Solution:
- Perform Injector Service
- Replaced Spark Plug #5 and #6
- Replaced Injector #5 and #6
- Replaced Ignition Coil #5 and #6

Hope helps.

Jan 02, 2011 | Ford Escape Cars & Trucks

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1990 Chevrolet Lumina Base 6 Cyl 3.1L (88,000 miles) June 3, New spark Plugs installed. (Original Spark Plug wires remain) July 15, Power Brake Booster Replaced. Shop said battery was disconnected...


recommend getting a scan of the OBD II connector for trouble codes, then get back to us. Autozone and Advance have free scanning service. The trouble codes will help us diagnose the specific misfire. With the codes, I can provide you some recommended troubleshooting or repair steps.

Oct 02, 2010 | 1990 Chevrolet Lumina APV

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98 chev 3.1L runs rough and dies at idle


Check the DIS module or injectors. Check to make sure you have a spark on each cylinder. One cylinder could be misfiring

Mar 05, 2010 | 1998 Chevrolet Lumina

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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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