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Toyota GT86 Would Not Start After an Engine Rebuild: One Bank Was 180 Degrees Out

See why good peak compression did not clear valve timing on a Toyota GT86 no-start after an engine rebuild.

See how a Vauxhall Corsa P1615/P1616 no-start was traced past a condemned ECM to one corroded CAN branch wire.

See how a SEAT Leon P0491 involved both a failed air-pump relay contact and an unhealthy high-current pump motor.

Trace Toyota Auris P0A82 and a battery fan stuck on high to a camera mounting bolt through the low-voltage command wire.

See how Honda Insight P1448, IMA warnings and 12-volt starter fallback came from an overloaded IPU cooling-fan module.

See why a moving, communicating Jaguar X-Type turbo actuator still failed under acceleration with P132A.

Trace a Ferrari F355 warm-idle surge after multiple new sensors to crossed upstream and downstream oxygen-sensor connectors.

Follow a Fiat Ducato intermittent underboost from an expensive parts history to one broken ECU supply wire.

Follow a BMW 545i warning storm and intermittent no-crank to an alternator that spiked above 17 volts.

Follow a BMW E87 low-speed judder from one frequency dropout per wheel turn to a corrosion-swollen ABS pickup ring.