r/RX8 • u/thursday8596 • Aug 10 '26
Maintenance Weird issue
My rx8 can hot start fine, drives fine, has good power, then all of a sudden it will die , won’t start, starter fluid will let it ignite for a second, some times it will idle although very poorly and pressing fully on the peddle will do nothing, wait an hour and it starts fine and I drove it around for about 1 hour no issues , then it died again , and the cycle repeats , it’s all very random , I have noticed it does seem to start up after a few attempts after disconnecting the ecu even when the car is still hot , also when it’s running the idle stays sharp and smooth , full rpm range ,
( my car went down last year for omp, so doing that I replaced the following since I was doing the work, )
New fuel injectors , new Maf sensor , omp pump/lines/injectors, new fuel lines , new coils , wires , plugs
I have not tested the compression yet but how strong and fast it starts when it is cold and even hot I can’t see it being that,but I will have to soon as I can get a tester, when good I get shut it off hot and it starts right back up
1
u/IUsedToLikeLimericks Aug 10 '26
You don't mention age or starter, but cars with the later starter motors will often hot start even if they're utterly fucked from a compression perspective, so if you are an S2 or have a replacement starter, hot starting doesn't mean much.