i found a 1993 ls400 with 129k miles. the car was garaged kept by the original owner and was in really great condition - exterior and interior almost perfect. the engine ran perfect and didnt burn a drip of oil. it was a really nice car. new tires, recent timing belt. all original owner receipts etc. a real cream puff
the car started and ran extremely well except it died once. before it cut out the tachometer registered over 7000 rpm in spite of the fact it could not have been even close to that.. i pulled over and restarted it and it ran fine for 40 minutes. i was not able to make it stall again. the seller was aware of the issue although played stupid. he was asking $4k for the car and i offered him $2k considering the problem. he took my $2k offer and i figured with any luck i can fix it. the seller told me sometimes the odometer craps out when it happens and shows zero mph.
my first guess is the ecu computer or maybe one of the connections. there are no check engine lights on.
does anyone have any insight into the cause of this problem?
thx in advance.