Chrysler Repair: ignition problem upon acceleration, chrysler lhs 1994, wire insulation

Question
Chrysler LHS 1994.
Ignion problem that occurred spontaneously as I was driving. Engine idles OK (no missing). Also OK when I'm driving if there is no movement of throttle. If I accelerate from start or while moving, there is an ignition miss or breakdown as if there is a short in plug wire insulation. Problem is almost non existent when engine is cold, but becomes progressively worse at increasing temperature. I can achieve normal speed by maintaining minimum or no movement of throttle. Unable to safely pass. I bought an ignition coil pack but have been reluctant to install because of belief that problem may be with one of the sensors (heated oxygen or throttle position). Any thoughts, guidance or suggestions?

Answer
Hi John,
The engine controller may have noticed the problem and logged it into the memory. The most useful thing to do would be to try to get the fault codes that are likely stored in the engine controller memory to readout. Try using the ignition key: turn it "on-off-on-off-on" and leave it "on" (doing this quickly, no longer than 5 seconds). Then watch the 'check engine' light to begin flashing, then pause, flashing, pause, etc. Count the number of flashes before each pause and keep track of the numbers. Repeat the readout and verify the counts are correct. Then group them in pairs in the order that they came out, thus forming two digit numbers. You may notice that the pause is shorter between the digits of a given number, and longer between the numbers themselves. Then send me a 'follow-up' question telling me the results of your readout. By the way, 55 will be the last number (two groups of 5 flashes each) and that is the code for "end of readout".
I have the troubleshooting manual for several of the engines and we can look up the possibilities of what is wrong based upon what fault codes you show.
There is also an essay on fault codes at the site:
http://www.allpar.com/fix/codes.html
which gives the meaning of the code numbers. But then you need to get specific info for what exactly might be the diagnostic tests or parts to replace to complete the repair.
Roland