This is a fresh build. Im having some electrical problems and they get more serious when driving in the rain, Like everytime I turn my heater motor on or off while dataloging...It will lockup the s300 and Im then forced to restart it by shutting the car off and then back on for it to work again. I drove the car once in heavy rain and all my electronics went haywire....Like when I would turn my windsheild wipers on the gauge cluster would completely cut out, Then if I turned them off it would come right back. The rain also affects the way the car runs....It would lean out hard and then go back to normal and repeat, Keep in mind everything on this engine is new. I feel like the electrical problems may be a grounding issue but thats just a guess, I need to resolve this issue over the winter so I can get the car tuned in the spring. Here's all the info I could think of off hand. 1997 Honda Civic DX Hatchback B18A1 Bottom B16A2 Top CTR Cams Skunk2 Intake Manifold Blox 66mm Throttlebody NGK BKR7E Plugs Magnecor Plug Wires Timing is 16 Degree's BTDC New Map Sensor AEM Wideband o2 AEM Short ram air intake New IACV New Blox TPS Sensor Blox FPR RC 310 Injectors LS Stock Fuel Rail OBD2A To OBD1 Conversion Harness P72 ECU Hondata S300 Aftermarket Crank Pulley No FICV 99' SI Gauge Cluster New Heater Core No radio connected Just about every seal in the car leaks water when its raining. 400 Watt power inverter hooked directly to the battery,Those wires do run parallel with the engine wire harness coming through the firewall into the cab. (It has a manual power switch) EVAP Purge Control Solenoid Valve bypassed. Dash is Not Completely Put Back Together, Still some wires hanging around for things like the lighter. My rear defrost doesnt work, I havent tested to see if its getting correct voltage. Previous owner removed rear window wiper, No idea if those wires are still just hanging out touching somthing they shouldnt be. Oil and Wideband Gauge power are tied into an ignition wire that comes up to the ignition module (Where your key goes). The mass ground for the vehicle is bolted underneath the passenger side dash to the sub frame, But there is paint there...Its not bare metal. All paint under the hood is new, So all grounds under the hood are also touching paint..Not bare metal. Any help is greatly needed and appreciated.