Click to view attachmentQUOTE(scott_in_nh @ Jul 29 2011, 06:42 AM)
I want to add an A/F gauge where my dead clock sits - maybe over the winter.
If you really want to tune your motor, IMO you can skip playing with temp sensors (band-aid) and go right to adjusting the MPS (tuning).
read this if you have not already done so:
http://members.rennlist.com/pbanders/manif...ensor.htm#IndexDrill a hole in the MPS plug so that you can adjust the screws without removing the plug or the mps from the car.
After you have done that and you find you did not have enough adjustment, you can play with the temp sensors (but I don't believe you will need too).
What gauge/sender did you choose? where did you put the oxygen sensor? Pictures?
I ended up with the Innovate Motorsports MTX-L. It's all self contained in the gauge and seems to be pretty high quality. The hardest part was running the cable cleanly to the dash. On that note, there are two MTX-L models, the powersport model has a cable only three feet long. The other one, MTX-L3844 looks the same but has a ten foot long cable. Even that was barely long enough to reach the drivers side dash. They sell a 18 ft long cable as a $70 accessory. I put the O2 sensor in the tail pipe, a stock 1.7 muffler set up. It gave good clearance and was easy to take off for welding. The only draw back is the mixture gets diluted at idle with outside air and gives a false reading. It doesn't matter too much though, I just hold a rag over the tail pipe to see what the true reading is. The gauge is so light I have mounted it with some velcro to my dash cover. I used a 7/8th hole saw to get the cable through the body, it needs to be that big for the connector. I ran the cable through the body instead of the engine tin to avoid needing to unhook everything to get the engine out for future service. Otherwise it's just three wires to hook up, power, ground and headlights, to dim the gauge at night. I would take a piece of ten foot long wire and see if you can reach your console from the exaust to check cable lenght. Good luck with your install, Mike
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