Location of ignition coil B secondary circuit

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!!

SOURCE: I HAVE DTC PO351 IGNITION

a had a similar problem I changed wires, coil, even connector that plugs into the coil it still had the same problem. It turned out to be the computor. Might be the same thing for you

SOURCE: what controls primary feed of ignition coil and where is it located?

It is controlled by the ECM and the fix will be to replace the coil

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• 20706 Answers
• Posted on Mar 08, 2014

SOURCE: jeep wrangler 2008-dtc = p2302=ign. coil secondary circuit insufficiently ionized=heavy misfiring, mostly on middle coil (cal.#1 and #4)-what controls primary coil feed?

triple posted now. and i answered on in lenght.
back up 1. or 2.

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• 20706 Answers
• Posted on Jan 15, 2016

SOURCE: how do you install an

x2
the distributor cap center wire is main coil feed.
the book is free
posted 200 +times
on both 2 your unstated engines.
here is
the ZJ
http://www.morris4x4center.com/knowledge-base/index.htm?utm_source=cj#service

READ CHAPTER 8D PAGE 26
READ THAT ,FIRST
then ask questions that are not clear in the book.

see, i taught you how fish,,,happy fishing....

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