Pre-swap wiring questions - BP4W into 92 NA6
Hello all,
I've finally finished building the motor and am going to attempt to install it this weekend. I just wanted seek clarification or a set of second eyes when it comes to wiring...just to be sure. I am going to be upgrading to an MS3 unit and will be retaining the BP4W sensors. To merge these sensors into the NA6 harness, I need to ensure that they are connected correctly. ____________________________________ For the Crank/Cam signal Stock 1.6L CAS: black w/ light green stripe = Ground white w/ red stripe = +12V white = crank signal yellow w/ blue stripe = cam signal on the BP4W Crank Sensor: White w/red stripe = +12v Black w/blue stripe = ground Grey w/ Red = Crank signal on BP4W Cam Sensor: White w/red stripe = +12v Black w/blue stripe = ground Grey w/ Blue = Cam signal essentially, I can split the power and ground from the stock CAS and wire it into the respective white/red and black wires on the BP4W sensors, then just hook up [NA6:white to BP4W:grey/red] and [NA6: yellow/blue to BP4W: grey/blue] ____________________________________ For IACV just connect the wires as polarity doesn't matter?
Originally Posted by Joe Perez
(Post 5233397)
On the stock '99 harness, the orange wire is positive and the violet / red wire is negative, from the point of view of the IAC valve.
Also, I agree that the valve should be insensitive to polarity, as it's just a simple solenoid. ____________________________________ TPS NA6 Red = 5v reference NA6 light green/white = TPS signal NA6 black/green = Ground BP4W Light Grn/Red = 5v reference BP4W Green/Black = TPS signal BP4W Black/Red = Ground
Originally Posted by Braineack
(Post 940132)
Try this:
Code:
TPS Function Harness ____________________________________ Electronic boost control solenoid Is there a switched 12v source I could use for the EBC? I am pretty sure I can hijack one of the wires back to the ecu and relocate it to be used for Megasquirts Boost Control function. I think that's it for the wiring. As I recall the fan switch that was at the front of the block is now obsolete since megasquirt controls the output. ANY insight or correction to the above would be greatly appreciated |
Can someone take a picture of their blow to so I can see what the colors should be for the plug?
The pigtail I have does not match the factory colors at all. My tips pigtail has: Brown with yellow stripe Brown Pink with black stripe |
2 Attachment(s)
my colors don't match at all :(
can anyone take a pic of their stock 99-00 wires for the TPS and the cam/crank sensors? https://www.miataturbo.net/attachmen...402_161142-jpg |
2 Attachment(s)
Also my crank sensor pig tail does not match, but am I safe in assuming black is ground, red is power and blue is the signal wire to be connected to the CKP wire from the 1.6L CAS?
https://www.miataturbo.net/attachmen...402_161207-jpg |
anyone?
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