Synapsis xD

Ok, so after replacing everything i possibly can on this car, i still have the same issue as usual, before im pretty sure the car was running on one rotor, so i replaced the coil packs, thinking that it was the issue, im pretty sure it did fix it, but it still runs like absolute garbage, i feel like its getting to much fuel into the motor, because after starting it their was a huge cloud of grey smoke from the exhaust of the unburnt fuel in the motor ( maybe to much fuel already inside the motor? ) the TPS was brand new and "Adjusted" but im not even sure because of this screw ontop of the throttle body was messed with by one of my freinds, and i have 0 clue on how to adjust that all properly again, ( if someone can link me to a thread on that, it would help ) but the car has New Plugs & Wires, New Coil Packs, New TPS, ECU & Timing was also set using the yellow line and setting the CAS on the dimple, and putting it all back together. theirs new gaskets on the UIM both bottom and top, and new vaccuum lines, the only issue i can see i have 100% is i have vacuum leaks, on the side where the exhaust manifold is, ( if someone can help me out on that it would be great as well, like a diagram of a picture of their S4 N/A lines on the Exhaust side of the motor, ) the only things i can see being the issue is Misifire,Vacuum Leak,Mal-adjusted TPS, FPR and BAC. thats the only things that are making the most sense to me at the moment,

Here's a video of what its doing now.


Here's a video of what it was doing before


i really dont want to get rid of this car because i have over 300+ hours in the garage and all the work was done by me, a 17 year old with basic tools. never seen a shop in my ownership, i dont want to send it to a shop either because i dont trust mechanics because its a rotary and dont want them telling me something stupid like a "Blown Headgasket" for the smoke out the exhaust. any help would be appreciated, Links to videos, other threads, etc

Thankyou

Rotary Alkymist

That doesn't sound good haha. Do a compression test. I think your dealing with at least one bad apex seal. I feel that this thread might be in the wrong section.

EDIT: Rotaries don't suck. People just have a tendency to check and replace everything without doing a compression test(properly). I've been reading so many threads lately about people dumping insane amounts of money in the wrong place -just to come back around full circle to a compression test ... and failing. Harsh lesson. You've also changed so many things at this point that it's impossible to diagnose.

mazdaverx713b

iTrader: (91)

Before you go any further, have a compression test performed with a proper rotary compression tester.

NEVER mess with the timing unless someone has been in there and screwed it up. There's a black cap on the adjustment nut for a reason. Throwing parts at a car is not a good idea. Proper diagnostics is the way to go. A TPS can easily be tested with a multimeter as can an ECU. You can have a faulty injector and that requires an ohm reading and a noid light. That's one thing you did not mention that you looked into. A large vacuum leak will cause running and stalling issues. That's something to look into as well.

insightful

that reeding sound leads me to believe you have a massive obstruction in the intake, exhaust or a large intake leak probably at the intake manifold and the gasket is causing the sound as air gets sucked by. :3

my turbo car made similar sounds when the cat got completely clogged, but it sounds like you have straightpipes so that's unlikely.