Question about 1996 Chrysler Cirrus
only on cylinder #1
bad spark plug or wires to it or COP coil to it.
bad injection signals
low compression on #1
there are simple tests for each, i will not ever guess on misfire.
misfire means, in English (not slang)
THIS Cylinder #1 had weak power during the POWER stock.
The ECU computes Velocity of each power stroke and Reports the weak.
even an air leak to #1 intake runner can cause this
or the injector #1 base gasket leaking. Air.
but it is not fibbing it is weak. #1
Posted on Oct 20, 2013
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Posted on Jan 02, 2017
This is a very common problem....and can be a little difficult to troubleshoot.
How long since a tune up?
My 01 did this same thing at 80k miles..ended up being a bad coil. VERY easy to replace, so don't take it to a dealer unless you don't want to do minor wrench turning.
I first did an entire tune up with new plugs and wires....didn't help at all. I measured the resistance of the ignition coil assembly and found that #3 was reading lower than the rest even though it was "in spec". After replacing it, the van has run for thousands of trouble free miles! Worth every penny...gas mileage went from about 14 back to 19! Paid for itself very quickly.
The shocker in all of this was that after doing MUCH shopping around for a coil, the Dealer was the best price at around $80-90. Even Autozone and others were over that price....go figure.
IF you have not tuned it up in a while, pay the extra for a new set of plug wires and new OEM plugs and have them installed by someone competent. Getting the spark plugs installed at the rear of the 3.8 is not a whole lot of fun. I did it myself, but only because I enjoy working on my vehicles.
Posted on Jul 10, 2009
It may be that there is carbon build up. Check the bulletins for you car.
THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 09-005-05, DATED
DECEMBER 2, 2005, WHICH SHOULD BE REMOVED FROM YOUR FILES. THIS IS A
COMPLETE REVISION AND NO ASTERISKS HAVE BEEN USED TO HIGHLIGHT
Multiple Cylinder Misfire Or Rough Idle
This bulletin involves rotating all engine exhaust valves, replacing the valve spring retainer
locks with a new design to increase valve rotation at lower RPM, inspecting/replacing the
MAP sensor (as necessary), and decarbonizing the combustion chamber.
2004 - 2006 (CS) Pacifica
2005 - 2006 (LX) Chrysler 300/Magnum/Charger
Of course you know how much the dealer is going to be if you are out of warranty. You can try a few things which may possible help, like getting some of the mopar fuel cleaner or another good fuel cleaner, I've heard a few people resolving the issue that way. If you need a good service manual Promanuals has one relatively inexpensive.
Posted on Sep 27, 2009
Do you know how check the engine codes?
Turn the key 3 times and the codes will be displayed where the odometer number is displayed.
If the code is 302 it is spark plug mis fire.
It could be a bad fuel injector.
Posted on May 28, 2010
SOURCE: P0304 code-Misfire on cylinder 4
A P0304 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #4.--------
Symptoms may include:--------
If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.-----------------
This should help.Thanks.Helpmech.
Posted on Mar 27, 2011
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Generic OBD II Diagnostic Trouble Codes
DTC CODES P0300 to P0399
P0300....Random/Multiple Cylinder Misfire Detected
P0301....Cylinder 1 Misfire Detected
P0302....Cylinder 2 Misfire Detected
P0303....Cylinder 3 Misfire Detected
P0304....Cylinder 4 Misfire Detected
P0305....Cylinder 5 Misfire Detected
P0306....Cylinder 6 Misfire Detected
P0307....Cylinder 7 Misfire Detected
P0308....Cylinder 8 Misfire Detected
P0309....Cylinder 9 Misfire Detected
P0310....Cylinder 10....Misfire Detected
P0311....Cylinder 11 Misfire Detected
P0312....Cylinder 12 Misfire Detected
P0313....Misfire Detected with Low Fuel
P0314....Single Cylinder Misfire (Cylinder not Specified)
P0320....Ignition/Distributor Engine Speed Input Circuit
P0321....Ignition/Distributor Engine Speed Input Circuit Range/Performance
P0322....Ignition/Distributor Engine Speed Input Circuit No Signal
P0323....Ignition/Distributor Engine Speed Input Circuit Intermittent
P0324....Knock Control System Error
P0325....Knock Sensor 1 Circuit (Bank 1 or Single Sensor)
P0326....Knock Sensor 1 Circuit Range/Performance (Bank 1 or Single Sensor)
P0327....Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)
P0328....Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
P0329....Knock Sensor 1 Circuit Input Intermittent (Bank 1 or Single Sensor)
P0330....Knock Sensor 2 Circuit (Bank 2)
P0331....Knock Sensor 2 Circuit Range/Performance (Bank 2)
P0332....Knock Sensor 2 Circuit Low Input (Bank 2)
P0333....Knock Sensor 2 Circuit High Input (Bank 2)
P0334....Knock Sensor 2 Circuit Input Intermittent (Bank 2)
P0335....Crankshaft Position Sensor A Circuit
P0336....Crankshaft Position Sensor A Circuit Range/Performance
P0337....Crankshaft Position Sensor A Circuit Low Input
P0338....Crankshaft Position Sensor A Circuit High Input
P0339....Crankshaft Position Sensor A Circuit Intermittent
P0340....Camshaft Position Sensor 'A' Circuit (Bank 1 or Single Sensor)
P0341 Camshaft Position Sensor 'A' Circuit Range/Performance (Bank 1 or Single Sensor)
P0342....Camshaft Position Sensor 'A' Circuit Low Input (Bank 1 or Single Sensor)
P0343....Camshaft Position Sensor 'A' Circuit High Input (Bank 1 or Single Sensor)
P0344....Camshaft Position Sensor 'A' Circuit Intermittent (Bank 1 or Single Sensor)
P0345....Camshaft Position Sensor 'A' Circuit (Bank 2)
P0346....Camshaft Position Sensor 'A' Circuit Range/Performance (Bank 2)
P0347....Camshaft Position Sensor 'A' Circuit Low Input (Bank 2)
P0348....Camshaft Position Sensor 'A' Circuit High Input (Bank 2)
P0349....Camshaft Position Sensor 'A' Circuit Intermittent (Bank 2)
P0350....Ignition Coil Primary/Secondary Circuit
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