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Overview
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Vehicle Symptoms
- Engine misfires under load
- Rough idle or hesitation
- Check engine light flashing
- Loss of power during acceleration
- Poor fuel economy
Diagnostic Codes
- P0300 – random or multiple cylinder misfire Det
- P0301 – Cylinder 1 misfire Det
- P0302 – Cylinder 2 misfire Det
- P0303 – Cylinder 3 misfire Det
- P0304 – Cylinder 4 misfire Det
- P0305 – Cylinder 5 misfire Det
- P0306 – Cylinder 6 misfire Det
- P0307 – Cylinder 7 misfire Det
- P0308 – Cylinder 8 misfire Det
- P0351 – Ign Coil A Primary/Secondary Ckt
- P0352 – Ign Coil B Primary/Secondary Ckt
- P0353 – Ign Coil C Primary/Secondary Ckt
- P0354 – Ign Coil D Primary/Secondary Ckt
- P0355 – Ign Coil E Primary/Secondary Ckt
- P0356 – Ign Coil F Primary/Secondary Ckt
- P0357 – Ign Coil G Primary/Secondary Ckt
- P0358 – Ign Coil H Primary/Secondary Ckt
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Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | Mopar |
| Part Number | M02T 68238603AA |
Videos
Step-by-Step Guide to Doing an HEI Ignition Conversion on a Mopar #mopar #hei #ignition
The Mopar Ignition Solution! 4SecondsFlat.com's HRR688 Ignition Module Installed in a 72 Roadrunner
FBO Ignition Install on an Original Points Car#mopar #ignition #dodge #howto
Mopar Electronic Ignition Install
Classic Mopar Ignition Systems - How They Work, How To Diagnose Issues
GM HEI module in a Mopar Electronic ignition system @mostlymopar
Mopar electronic ignition upgrade to GM HEI module. Cheap Dodge high energy ignition conversion!
Another Mopar ignition upgrade to GM HEI video
Mopar ECU ignition box dyno shootout!
Mopar electronic ignition system without the ballast resistor
Change 5.7 HEMI Spark Plugs on Dodge Durango, Jeep Cherokee, RAM (OEM Mopar Plugs vs NGK Iridium)
About MOTORMIA
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Returns & Fitment
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.
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