We have installed a ton of engines in cars and one thing we hate is diagnosing bad electronics on a used engine! If you are not a gambling person, we have a solution for you. This list of sensors and solenoids is exactly what we install on every shop car we build.  This package combines OEM Honda parts and some sensors we source directly from the OE supplier to save you time and money.  Don't forget to add a K24A2 OEM Parts Package from our OEM Honda Parts Collection to complete your refresh of your engine prior to installing. Another critical purchase is to use Hondabond on your non o-ring sealing surfaces! When you combined all of these line items, you will have years of leak free reliability! Parts include: K20 50 degree VTC Solenoid (OEM) VTEC solenoid (OEM) MAP Sensor (Denso) Ignition coils (Denso, set of four) K24 crank sensor (NTK) Camshaft position sensor pair (NTK, right angle version) Intake air temperature sensor (NTK) K24A2 rear main seal (OEM) Water pump housing O-ring (OEM) Thermostat case seal (OEM) ECT sensor (Delphi)