Operation and screening coil above plug ignition (4 wire) – Toyota/Lexus

This case review is best for anybody fascinated in the doing work facts of Toyota/Lexus coil above plug ignition program, and the extremely related three-wire styles employed by quite a few other suppliers. We commit a great deal of time with the Pico on this 1, but don’t ignore the other primary checks I explore, such as the spark output, power equilibrium and relocating a suspected negative coil to yet another cylinder.

Motor General performance Diagnostics chapter 22

– check out engine light-weight (P0304)
– misfire

– switch the #4 ignition coil

Exams proven
– how to conduct a cylinder drop examination (power equilibrium examination) to discover a misfiring cylinder
– how to conduct a relative compression examination
– how to conduct a spark output check out on a coil above plug ignition coil
– comprehension three and 4-wire coil circuit style and design and procedure
– comprehension Toyota IGT and IGF circuits and related trouble codes
– how to scope examination a COP coil applying voltage and recent
– analyzing coil recent waveforms and IGT/IGF indicators
– determining distinctions between factory and aftermarket ignition coils

Instruments employed
– scan tool
– incandescent examination light-weight
– Pico 4 channel automotive lab scope
– very low amp probe

– (Chapter 22) No Spark Troubleshooting, Ignition Coil & Module Testing


Relevant videos
– How to examination an ignition coil with a examination light-weight (Nissan C.O.P style and design)

– How to examination for a shorted ignition coil with a scope (Lexus)

– Ford 5.4 shorted coil principal winding and negative computer driver

– How to examination an igniter on a Toyota/Lexus

– Ignition Program Models, Operation and Testing (an SD Premium movie)

For much more info on this matter, I have penned a “field manual” called Motor General performance Diagnostics which is readily available at www.scannerdanner.com as an Ebook or paper book.
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On ScannerDanner Premium I will deliver you appropriate into my classroom at Rosedale Specialized Faculty. You will come across website page for website page lectures taken appropriate from my book as effectively as special classroom sort case reports. What is so special about these classroom case reports? I pull stay trouble cars right into my classroom and we troubleshoot them in actual time, applying and applying the idea and screening treatments we learn throughout the classroom lectures. There is no superior on-line teaching of how to troubleshoot automotive electrical and electronics programs any place!

Post time: Nov-05-2016