P0352

P0352 is the cylinder 2 ignition coil primary/secondary circuit fault — same monitoring logic as P0351, just one cylinder over. Cylinder 2 location varies by manufacturer firing order and bank layout: on Ford Modular V8s cylinder 2 is the second from the front on the passenger bank (bank 1, position 2), on GM LS V8s cylinder 2 is on bank 2 (passenger side) at the front, on Chrysler Hemi cylinder 2 is the front-left (driver side bank), on BMW/Mercedes inline-6s it's the second cylinder from the timing-chain end, and on Toyota 2GR-FE V6 it's the rear bank front cylinder. Cheapest-first diagnostic: swap the cylinder 2 coil with a known-good neighbor (cylinder 4 or 6) and clear codes; if P0352 follows the moved coil to that cylinder, condemn the coil ($35-$120). If P0352 stays at cylinder 2, scope the trigger wire at the connector — you want a square-wave pulse synced to crank position with 3-6ms dwell. No pulse = broken trigger wire (resistance check from ECM pin to coil pin should be under 0.5 ohms) or failed ECM driver. Measure primary resistance with the coil off the engine: typical spec is 0.4-2.0 ohms cold; secondary 6,000-15,000 ohms. A coil that reads in-spec cold but still triggers P0352 under load is the classic 'fails when hot' failure — replace it, meter readings lie on heat-soaked coils.

Vehicle-specific patterns: 2004-2010 Ford F-150 5.4L 3V cylinder 2 P0352 is just as common as P0351 — same TSB 08-7-6 coil/boot kit applies, and on this platform plugs and coils are typically replaced as a set because all eight age together. 2005-2013 GM LS truck V8 cylinder 2 is on the passenger bank at the front and is the most heat-soaked coil on the engine — when one Delphi D585 fails, the rest are usually weeks behind. 2007-2013 BMW N52/N54 inline-6 cylinder 2 P0352 from failed Eldor red-top coils, same batch-failure pattern as cylinder 1. 2007-2014 Nissan Altima/Maxima 3.5L VQ35DE cylinder 2 P0352 often traces to valve-cover gasket oil intrusion on the rear bank — rear bank gaskets fail more often than front because of heat. 2003-2010 Hemi 5.7L cylinder 2 (driver-side front) P0352 from worn coil-on-plug boots cracking under heat — Hemi runs 16 plugs but 8 coils, so each coil fires two cylinders, and a P0352 here can present as misfires on both cylinder 2 and its paired cylinder. Estimated repair: $35 (one coil) to $520 (full coil set + plugs).