Thread: Tuning with CIS
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  #9  
Old 03-01-2009, 01:23 AM
400Eric 400Eric is offline
Knappy Drag Racer
 
Join Date: Jun 2008
Posts: 1,725
Quote:
Originally Posted by JayRash View Post
I meant regarding the fooling of the temp sensor, sorry, here is the post but u can try higher values than those:



there are a few tricks to fool the ecu into some good timing advance and a bit more fuel as well.
IIRC find the engine temp sensor that has 4 wires into it, this one feeds temp input into 2 ecus, the ignition and injection. usually it should have 2 grounds and 2 live wires. the one that feed the injection should terminate at pin 21 in the ecu just do a connectivity test. once located cut it and fit a variable resistor. now the second one terminates in one of the wires going to the ignition ecu located on the left fender. also cut this and reconnect with a variable resistor.

Good values to start with should be abt:

450 ohms for the injection
and 750 ohms for the timing
and then adjust as u like.
let us know how it goes, it should give u a good power increase.
to see the diff just wire 2 switches the would bypass the variable resistors (short them no need to cut the connection to the resistors since electricity takes the shortest least resistant route)
Great thread everybody. Jay, could you please post that link again? Thanks.
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