dear 3rd gen owners

i recently come up with a few problems, first is the idle, it went really bad and the car almost died a few times, so i got all brand new coil packs down from mazdatrix and the idle is ok now but still a bit rough, just like a dead cylinder noise on a subaru WRX..


i have changed all the vaccum hoses with silicone and now the secodary turbo wont come on, could this be a sticky wastegate or a hose in a wrong slot???

i have changed the fuel filter and the injectors are all working fine...

funny thing is that the rpm doesnt jump up and down any more(like when i had weak coils) but it sounds weird, no power loss on driveaway, or underload but just when it is sitting idle it sould like there is a miss in combustion.

is there a easier way to test the ignitior ??? rather the the way specified in the repair manual.

could this be the plugs are not good enough, i am running HKS m45re and m50re.. but when i first installed them it was fine..

or could this be excess build of carbon sticking an apex seal... or even worst????????

does any one have a pic of a 1998 JDM rx7 vaccum ???????


should i try the ATF trick if so what is the best way to do this.. ???

main problem is that i dont have any RX7 specialist who can give me a definitive answer as to what is wrong

 

Post a full list of engine related modifications

 

engine is stock but the engine running now has 7000 km/s on it, i only have an air intake and bov,

see the thing is the previous owner had bought this new engine from this company called ZIMAX in japan... i dont think this engine is ported if that is where you are heading, cause this problem was not there when i bought the car..

another thing is that as i drive the car there is no problems at all.... just runs fine.. only when it idles it starts to bog down..

also did the tps adjustment, i did try to find the error codes and it came up with throttle position sensor and intake air thermosensor, i forgot the actual code numbers but that is what there were..

 

IAT is probably dead. Have you tested the TPS to see that it is working to spec? FSM has a procedure.

 

yes i check for the tps voltages and they are fine.. i will check the codes again today

 

guys i have checked everything but nothing seems to be a problem so i guess i have a chipped seal, i have raised the rpm to about 1000-1100 and now the car is stable...