Man 30 min. of plastic removal. Be very careful when unplugging the 2 wire plug to the coil thats over top of the sensor it has a very light clip on the plug and if you squeeze it to hard it will snap.
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I'm probably going to stop by Autozone tomorrow and pick one up and give it a shot. My SC has been perfectly maintained and runs awesome... so we'll see how mine looks and how this turns out I guess... haha.
'92 SC400 | Black Onyx
'04 330Ci | Jet Black
SD Based Photographer | flickr
Drove the car today with A.C. on just as the day before, no sluggishness when leaving stop signs. The car felt smoother and more tuned. When the car is in O.D. and you pull down to 1400-1600- RPMs it still has its light miss, must be a diff. issue, Prob. either injector wear, or MAF glitch. I did have the battery unhooked over night to reset ECU, guess we'll have to see how it does long run, so far, the best its ran.
are you talking about the hotwire maf sensors when you say piezoelectric filament? Only 96+ sc400's are equipped with these and there is a spray you can buy at almost any auto parts store that is specifically designed to be sprayed on hotwire sensors.
A hotwire maf sensor has a wire heated up to a certain temperature, and depending on the amount of air coming in, the resistance of it changes. Therefore the voltage that can go across changes.
92-95 sc's have a karman maf sensor that has an led that reflects light off a mirror and measures the number of vortexes created by the incoming air. I am not certain if its safe to spray this maf cleaner on these types of sensors but I have seen it done without problems.