Sorry to blow your wall up but i could really use your advice on this.

I still have not been able to produce any check engine codes using the "stomp" method both my self and my mechanic tied with no success. Just recently i had my o2 changed as of currently i am running a o2 code. being that i cannot do a "stomp" test and due to the o2 code. we believe this points directly to the throttle position sensor.

my symthoms:
loss of power 70% highway driving speratticly. speratic misfire. garenteeded misfire while raining out.

it makes sense that the o2 code would throw if the sensor is bad due to wrong reedings on the sensor?

thanks for your help your advice is greatly appreciated

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This post was auto-generated based upon a question asked on our tech article page here: Pelican Technical Article: BMW E30 Coolant Temp Sensor Replacement

I'm not sure which year / model car you're referring to here. I'm going to copy this question to the forums and we can clarify it there.

- Wayne

I never was able to use that stomp method so I bought a PEAKE tool. Even if spend $150 you can resell it on Craigslist and recover $75 when you don't need it anymore.

You definitely don't have an o2 sensor issue; they won't cause a misfire usually a rich condition.

The rain sensitivity is a dead give away for a coil and/or igntion problem. Pull the trim cover off the coils. With the engine running, squirt water on the coils with a
spritz bottle and see what happens. This way you isolate the bad coil pack. You can usually get a used one at salvage yard for $35 or less. You can try fixing the coil pack by using by JB Weld to seal the hairline cracks in coil pack.