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I'm geting misfire when engine get hot and clear out after 4-5 min or after drining 2 km misfire starts and clear out in 4-5 minites, What is the problem

Problem started after heavy cold, didn't start for 4 days, after that tried but hard to start. changed crank censer, started with difficult, then started to realize the misfire and engine lite (P0352, said ignition coil B primary / secondary circuit) changed coil pack 2 times, still the same, I had oil in the first plug tube that was not good, changed rocker cover gasket, plug wire, problem not fixed, changed cam shaft censer, still the same, I'm asking for your help please, any aider. My e-mail is yababas@hotmail.com

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Giving year make and model helps the professionals be able to identify your problem this is such a vauge description of problem that we can give you wrong info very easy and costing you a lot of money..

Posted on Feb 11, 2014

Testimonial: "This is 2000 Chrysler cirus, 2.4 LTR Engine, 4 cylinder"

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: obdll code reads "P0351",ignition coil A

Regarding Ignition Coil Driver Fault P0351:
An ignition coil driver is the signal that comes OUT of your PCM at pin A7. The "A" plug is the Black plug nearest your engine that goes into the PCM. So, Pin A7 tells your coil what to do. So it can't be the coil... its the command "to" the coil originating inside the PCM.
What goes "in" at pin A8 is the input signal from your crankshaft sensor. And just above it is pin A18 the camshaft sensor input. These inputs are critical so its no surprise that everyone is running around replacing them even though they don't solve the problem.
The main symptom is that the vehicle misses and backfires, some times stalls, and gives you the DTC P0351. Another problem is very low idle; at a stop sign for instance. Trying to make it home by gunning the throttle while riding the brake. The signal that comes out of pin A10, A11, A19, A20? The Idle Air Control signal to the Idle Air Control Valve on the throttle body.
All of these pins reside together in an area about 1/4" square. The circuit board behind these pins is faulty, or the pins are not making good contact.
Find the PCM, follow the wiring harness from the above mentioned sensors to the PCM and push them in to make sure they are not loose.
Good Luck!! Keep me posted!!

Posted on Dec 03, 2010

emissionwiz
  • 76846 Answers

SOURCE: have 2005 tribute it quit

U have a defective wiring harness or a blown fuse for the coil circuit, check all fuses replated to the electronics for the engine in both the fuse boxes

Posted on Sep 27, 2010

Mr BrokRench
  • 1623 Answers

SOURCE: Recurring #2 cylinder misfire.

Hello Mr Fixit...If memory serves me right, the PO352 B fault code would indicate #4 cylinder coil and PO352 A for #3. The
Possible causes ...faulty spark plug...faulty spark plug wire..faulty ignition coil pack..faulty PCM...open or short in wiring from PCM to iginition coil pack. To accurately troubleshoot and determine the problem you will need an oscilliscope and a diagnostic scanner. Without these you are basically guessing as to the cause.
The ignition control module is integrated into the PCM and a faulty ICM can definitely cause this trouble code...and i have seen my share of faulty PCM's.
Hope this helps and the best of luck to ya.

Posted on May 13, 2009

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I changed the battery in my 1998 F150 it was running fine now it doesn't run good it acts like it doesn't want to shift and it bogs down there's no codes in the light's not on?


You can try a drive cycle, see if it helps? There may be an idle relearn, if just idle issue? Usually it will relearn idle on its own by driving.
Drive Cycle Recommendations:
  1. Most OBDII monitors will complete more readily using a "steady foot" driving style during cruise or acceleration modes. Operating the throttle in a "smooth" fashion will minimize the time required for monitor completion.
  2. Fuel tank level should be between 1/2 and 3/4 fill with 3/4 fill being the most desirable.
  3. The Evaporative Monitor can only operate during the first 30 minutes of engine operation. When executing the procedure for this monitor, stay in part throttle mode and drive in a smooth fashion to minimize "fuel slosh".
WARNING
STRICT OBSERVANCE OF POSTED SPEED LIMITS AND ATTENTION TO DRIVING CONDITIONS ARE MANDATORY WHEN PROCEEDING THROUGH THE FOLLOWING DRIVE CYCLES.

For best results, follow each of the following steps as accurately as possible:
OBDII Monitor
Exercised
Drive Cycle Procedure
Purpose of
Drive Cycle Procedure
Drive Cycle
Preparation 1. Install scan tool. Turn key on with the engine off. Cycle key off, then on. Select appropriate Vehicle & Engine qualifier. Clear all DTC's/ Perform a PCM Reset. Bypasses engine soak timer. Resets OBDII Monitor status. 2. Begin to monitor the following PIDs: ECT, EVAPDC, FLI (if available) and TP MODE.
Start vehicle WITHOUT returning to Key Off. 3. Idle vehicle for 15 seconds. Drive at 64 Km/h (40 MPH) until ECT is at least 76.7°C (170° F). Prep for Monitor Entry 4. Is IAT within 4.4 to 37.8°C (40 to 100° F)? If Not, complete the following steps but, note that step 14 will be required to "bypass " the Evap monitor and clear the P1000. Engine warm-up and provide IAT input to the PCM. HEGO 5. Cruise at 64 Km/h (40 MPH) for up to 4 minutes. Executes the HEGO monitor. EVAP 6. Cruise at 72 to 104 Km/h (45 to 65 MPH) for 10 minutes (avoid sharp turns and hills) Note, to initiate the monitor: TP MODE should =PT, EVAPDC must be >75%, and FLI must be between 15 and 85% Executes the EVAP Monitor (If IAT is within 4.4 to 37.8° (40 to 100°F)) Catalyst 7. Drive in stop and go traffic conditions. Include five different constant cruise speeds, ranging from 40 to 72 Km/h (25 to 45 MPH) over a 10 minute period. Executes the Catalyst Monitor. EGR 8. From a stop, accelerate to 72 Km/h (45 MPH) at 1/2 to 3/4 throttle. Repeat 3 times. Executes the EGR Monitor. SEC AIR/CCM (Engine) 9. Bring the vehicle to a stop. Idle with transmission in drive (neutral for M/T) for 2 minutes. Executes the ISC portion of the CCM. CCM (Trans) 10. For M/T, accelerate from 0 to 80 Km/h (o to 50 MPH), continue to step 11. For A/T, from a stop and in overdrive, moderately accelerate to 80 Km/h (50 MPH) and cruise for at least 15 seconds. Stop vehicle and repeat without overdrive to 64 Km/h (40 MPH) cruising for at least 30 seconds. While at 64 Km/h (40 MPH) , activate overdrive and accelerate to 80 Km/h (50 MPH) and cruise for at least 15 seconds. Stop for at least 20 seconds and repeat step 10 five times. Executes the transmission portion of the CCM. Misfire & Fuel Monitors 11. From a stop, accelerate to 104 Km/h (65 MPH). Decelerate at closed throttle until 64 Km/h (40 MPH) (no brakes). Repeat this 3 times. Allows learning for the misfire monitor. Readiness Check 12. Access the ON-Board System Readiness (OBDII monitor status) function on the scan tool. Determine whether all non-continuous monitors have completed. If not, go to step 13. Determines if any monitor has not completed. Pending Code Check and Evap Monitor "Bypass" Check 13. With the scan tool, check for pending codes. Conduct normal repair procedures for any pending code concern. Otherwise, rerun any incomplete monitor.
Note: if the EVAP monitor is not complete AND IAT was out of the 4.4 to 37.8° C (40 to 100° F) temperature range in step #4, or the altitude is over 2438 m. (8000 ft.), the Evap "bypass" procedure must be followed.Proceed to step 14. Determines if a pending code is preventing the clearing of P1000. Evap Monitor "Bypass" 14. Park vehicle for a minimum of 8 hours. Repeat steps 2 through 12. DO NOT REPEAT STEP 1. Allow the "bypass" counter to increment to two.
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