420 sputter, hesitant

[steven_esi_bui]

Ok so I have a 97 esi with no engine mods expect a shitty intake. The car idles fine and takes off good but when I hit around 3.5k and shift the car is hesitant, and tries to bog down on me. I've changed the crankshaft position sensor and the Camshaft position sensor, oil, spark plugs, coil pack, and spark plug wires, injectors,fuel filter and pump, and cut off the catalytic converter, changed the TB and the TB gasket and the idle air control valve. The car doesn't show no CEL and no codes. I've been reading that it might be a bad MAP sensor. But I'm not sure, any one has a clue what can be wrong? I'm at a standstill with this damn car!

 

[4g63ej257]

Do you have access to a good scan tool that shows data?

 

[jayson427]

Why did you make a second thread on the same thing? I posted on your original thread with advice.

 

[moose05]

What is the condition of your timing belt? do you also get vibrations at a certain rpm range? Does this happen in all gears?

 

[bucken13]

I had a simular issues on my 96 Rs after a few weeks on pulling my hair out and replacing just about everything you did i found a loose wire on the Cam angle position sensor. Bought a wire clip off ebay and solved my issues. Hope that helps. dont know how i missed that for so long