lm-1 wideband, do i need rpm cable????

[LRS95TSI]

i just got the lm-1. i am planning on tuning with it this weekend. what i am wondering is if i can tune using the lm-1 and safc-2 and pocketlogger without seeing my rpms through the lm-1. if so, how would i do it? would it just hafta be glancing at the wb when im at wot and noting the a/f ratio along with rpms or is there another way? sorry it's a newb q but i really dont have the extra money for the rpm cable, i just got my jrc FMIC!!!

 

[mtwollet]

I just ordered a rpm cable. If you can wait when Im done with it. I could loan it to you.

 

[mtwollet]

Ps you'll need the rpm cable. "Need to keep eyes on road"

 

[gamingguru]

You really need the RMP so you have decent log info to look at when you are done with a pull.

 

[LRS95TSI]

do u just tap it into the ecu i assume? but for right now to tune it properly, i would basically need a person to look at the a/f ratio and note the rpm's right? damn thats some broken ass tuning!

 

[mtwollet]

im gonna tap it on the ecu rpm signal

 

[mtwollet]

maybe off the rpm wire on the s-afc

 

[mtwollet]

do u just tap it into the ecu i assume? but for right now to tune it properly, i would basically need a person to look at the a/f ratio and note the rpm's right? damn thats some broken ass tuning!

A/f can change so fast that having a second person may not be accurate readings vs logging with rpms.