So my other half decided to buy a 18 rs400 rwd last month in Miami Florida. Car was a r title due to ds impact on doors and b pillar, cosmetic repairs were done in an acceptable but rushed manner( clear runs). anyway we flew from pittsburgh to Miami to drive the car home on a Friday evening (June 12 iirc) and it drove beautifully until Sunday after noon. We pulled off of wv 19 near oak hill wv for fuel and food. While getting lunch it began to hail so she pulled the car to a near by gas station to avoid damage. 45 minutes later the hail let off and the rain slowed a bit so we pulled out behind A local cop onto the main road, there was 3 or 4 inches of water in the road at that time. We made it 100 yards up the road when a storm surge/ flash flood hit us and water went over the hood and the car immediately stalled. We sat in water up to 18 inches deep for nearly an hour before being pulled out. I went to the local parts store and bought a pump and maf cleaner and went to work I pumped out nearly 5 quarts of water from the intakes and turbos and cleaned the mafs. On the 5th attempt the vehicle started and settled into a normal but steamy idle. I shut it down and checked oil (good at the time, more on this later) and restarted it, no cel strong idle, let it idle for nearly 25 minutes and came to op temp. Revved a few times to 4k or so to clear it out and proceeded down the road to 19. Made it 7 miles up 19 north and lost all throttle response and the car stalled again and would not restart. Checked oil and it was severely milky but no I'll noises from the engine. Towed it 3 hrs home next day, stopped at local nissan dealer and borrowed consult(I'm a 5 year Nissan tech) and pulled 5 pages of codes from the ECU. Took it home and drained oil, aproximately 7 qts came out of it. I changed the oil 2x more times (0w20 mobil 1 and OEM nissan filters) and sent it to my local infinity coughrapistcough dealer for further diag. They hit me 4 days later with my engine is shot and we need 8 hours approval to tear it down and assess. Bullshit( compression was good and oil is now clean, no noises or debris in oil when drained) cam and crank sensor codes present along with a p0643 ecm voltage irregularity and throttle body codes (screenshots will be posted) went and picked up the car and replaced the throttle bodies but still no start. Ordered a used ecm 2 days later and married the key to the new ECM via snap on Zeus. On second start attempt car fired and ran roughly for ten seconds and stalled, 3rd attempt yielded the same result with no throttle response. Attempted to do a throttle body position relearn and the car wouldn't start any longer, called it a day. I'm near ready to throw in the towel but this is my fiancees dream car and I'm not ready to see it totaled yet again. First list of codes was pulled after a hard reset and 3x start attempts earlier this evening. Remaining pics are from a few days ago after repeated start attempts.
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