240zprace Posted April 15, 2004 Share Posted April 15, 2004 i'm swapping out my p90 and putting a n42 on hy turbo block. my ? is, i'm using stock ecu and the p90 has a head temp sensor between the #5&6 spark plug and the n42 dosen't have this hole to screw in the sensor. is there a resister i can put there to trick the ecu ??? if so i need a part# and where i can get one. or do i drill and tap a hole to the n42 head???? any help is greatly appreciated.......... Quote Link to comment Share on other sites More sharing options...
DAW Posted April 16, 2004 Share Posted April 16, 2004 The N42/47 L28E ECU use a water temp sensor located up near the thermostat housing. Use that sensor to substitute for the cyl head temp sensor. You may need to splice in some wire for your sensor harness-plug to reach up to the front of the engine. Check the thermostat and make sure it's not 195F., you don't want more than 180F., to influence your a/f baseline. Once it's running and you're ready to fine tune, search for the resistors and other tricks. DAW Quote Link to comment Share on other sites More sharing options...
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