1st pic engine bay of previous owner. 2nd pic , my engine bay setup
relocating battery at the trunk custom closed air intake upgrading to 3inch from downpipe to exhaust custom new stainless steel intercooler piping replacing existing entire old rubber hose new management with cop repaint engine bay custom oil catch tank to be install soon
Getting dyno this next few days , hope it did really good for the run.
Before this it was fine, now im hearing like kinda supersonic whiningg sound idk especially when i throttle.
My daily driven evo 4 (re-tune from haltech to maxx ecu) 1.3boost at 95 fuel. before this was 310whp
Standard Cam Stock Engine Turbo Evo 9 20G HR Custom manifold Turbosmart Wastegate Open pod air intake Standard intake manifold
To be complete i just need to remove reflector, and add few emblem . but this doing just fine.. 😂
Trying to diagnose an intermittent no-start issue on my Evo (running a Haltech Sprint 500), and I think I’ve narrowed it down pretty well.
Symptoms: • Engine cranks strong but won’t start • RPM stays at 0 while cranking (no signal) • There’s a slight fuel smell during crank • Fuel pump primes normally (can hear it) • Happens mostly when the engine is hot (heat soak situation) • If I turn the key off, wait ~10 seconds, then try again — it starts
What I’m thinking: This really points toward a failing crankshaft position sensor. Since RPM stays at 0 during crank, the ECU isn’t seeing engine rotation, so it can’t properly trigger ignition/injection. The fuel smell suggests fuel is present, but timing/spark isn’t happening correctly.
The fact that it only happens when hot also makes sense — sensor likely starts dropping signal when heat builds up, then recovers slightly after a short cooldown.
Plan: I’m planning to replace the crank sensor first and test. Not sure if I should replace the cam sensor at the same time or just wait and see.
Questions: • Anyone had similar symptoms and confirmed it was the crank sensor? • Is it worth replacing both crank + cam sensors together, or is that overkill? • Any recommendations on reliable aftermarket vs OEM for these sensors?
Appreciate any input 🙏
I was gonna change it to silver but now I’m not so sure. Drop your Evos in different colors 👇