Full Throttle Hesitation between 4-5K?

[E30-TourZing]

In advance, thank you for your contributions.


- When 3/4 to Full-Throttle, my 318is has a hesitation around 4-5K. It pulls strong before and after the second it takes for the ignition to figure out what is going on.

The plug wires were original to the car, so I changed them along with the spark plugs. It needed to be done, so now that this is still occurring I need to look deeper.

I figure....
- 02 Sensor
- Crank position sensor
- Cam sensor
- Coil Pack

Can anyone give me advice on what resolved their issue if similar to mine before I start spending money on sensors?

My guess now is crank sensor. The issue is pretty consistent at 4.5K RPM's.

Let me know your thoughts! Thank you,

[roguetoaster]

No CEL?

If not, it's time to test your cam/crank sensors, your TPS, and possibly the O2 sensor. Could also be any number of other issues from fueling to AFM wear.

[E30-TourZing]

No CEL?

If not, it's time to test your cam/crank sensors, your TPS, and possibly the O2 sensor. Could also be any number of other issues from fueling to AFM wear.

Thank you for your response.

No CEL,

I have a new O2 sensor, and then go from there. Its likely the crank/cam sensor though. I will try some out when I go to the bmw wrecker near me.