Which TPS wire
#1
Which TPS wire
Which TPS wire, A,B,or C would I splice into to send a .5v signal to my Innovate WBO2 RPM converter? I need this in order to log with the WB. I would like to create a 3D graph with RPM, TPS%, and AFR. Thanks.
#3
Supreme Member
Do you need a constant .5V? If so, TPS won't help you...but on my '89 the dark blue wire is the signal voltage to the ECM...i/e appx .54 at idle to 5V at WOT, and the grey wire is the refernce 5v line...Traviz got the ground as black.
HTH
HTH
#5
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Car: 91 GTA - 94 TPI Suburban
According to Chilton's and www.chevythunder.com, for the 730 ECM the signal inputs that you may want to use are:
1. TPS - Dark Blue
2. MAP - Light Green
http://www.chevythunder.com/199092_f...227730_ecm.htm
I would think the MAP is vital to determine load, since you can calibrate the LM-1 to display kPa from the reference 0-5v.
Good luck, Ed
1. TPS - Dark Blue
2. MAP - Light Green
http://www.chevythunder.com/199092_f...227730_ecm.htm
I would think the MAP is vital to determine load, since you can calibrate the LM-1 to display kPa from the reference 0-5v.
Good luck, Ed
#6
Thanks for your reply, Ed. Yes, I'm really starting to get used to the LM-1, and its logworks. I did a few logs, (not real time) and I was just using the RPM input, along with the AFR. Now its time to create a 3D graph. Eventually, as I learn more, I'll try to use the LM-1 to its full ability. I just wanted to be sure as to not damage the meter. Man, from what I see so far, this is a "quality" tuning tool.
#7
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iTrader: (1)
my old stock harness had diff color wires than my new tps but i was able to spice it in (tps sensor and feed to LM1)with no trouble. i dont think any damage can occur. none did in my case. i am reading A/F and tps and rpm BUT as was stated the MAP is a valuable feed to LM1. will be adding that as soon as paint dries.
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