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Fault symptoms, trouble codes, systems, components and evidence-led diagnostic workflows.

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Fault symptoms, trouble codes, systems, components and evidence-led diagnostic workflows.

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1

223

P0420 returned after an exhaust repair and the rear O2 still follows the front

By IdleScope, 5 months ago

replies 2

0

1

234

P0171 and P0174: fuel trims high at idle but improve at 2,500 rpm

By ScanLine Dan, 5 months ago

replies 2

0

1

248

Cold-start P0300 is concentrated on cylinder 6 for the first 20 seconds

By CANbus Notes, 5 months ago

replies 2

0

1

231

P0101 with positive trims: does the MAF reading prove the sensor is bad?

By OhmPatrol, 5 months ago

replies 2

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