Hondata

I know the procedure for doing this. I have a couple of problems because of my setup. The motor is a D15 in an 89 Civic. I have the Skunk2 intake manifold and a 99 Civic SiR 60 mm TB. I bought the TB without a TPS.

When I installed the TPS, I was very careful to try and match the resistance across the terminals. It ended up within milliohms.

Well my idle hunts incessantly. It only varies 3-400 rpms. Hondalogger shows the idle (closed throttle) voltage a 0.6 volts. It also only shows 3.8 volts at WOT. Could this WOT votlage be costing me power? Now for the other problem:

The Skunk2 manifold moves the TB so close to the firewall, there is absolutely no way to adjust the TPS with the throttle body mounted to the manifold. Problem #2: Hondalogger will not show TPS voltage unles the engine is RUNNING. If I am ECU on, but engine not running, the voltage does no change when I move the throttle.

I must remove the TB to adjust the TPS, but the engine won't run without a TB. Someone has suggested bolting on another TB, just to allow the engine to idle, and then I can leave my 60mm TB connected to the ECU (engine wiring) and make my adjustments.

Can anyone come up with a simpler solution? Have I missed something? Should the voltage vary if the engine is not running, and I move the throttle?

Thanks

just take the voltage at the ECU. find a pinout and get .5 volts at the proper terminal i did it on a 95 hatchback last week...

hondaswap.com should have the proper pinout i think for 4th gen stuff

But you don't understand. I can't adjust the TPS on the motor. I have to unbolt the TB from the IM. There's no room to get at the screws. The TPS voltage doesn't read unless the engine is running. Can't run the engine without the TB. There's my problem.

I have no trouble getting the voltage to read on the Hondalogger, but only with the engine running.

Are you saying if I read the voltage at the ecu (pin D11), the voltage will read, and change when I move the butterfly without the engine running?

It can be done. Just need special tools.

It can be done. Just need special tools.

Could you please elaborate?

Try removing the TB, removing or lossening the screws on the TPS, and putting the TB back on. Crank the car, take the voltage at the ECU, adjust the TPS, and mark with a metal scribe on the TB where it should be when .5 V. Remove TB, tighten screws, recheck voltage.

Does YOUR car have to running ? ...on mine ...all I have to do is have the ignition key in the ON position, engine not running, and I can adjust TPS voltage.
if your's is like mine... just remove the TB so you can get to the screws, turn key to ON postion, adjust for proper voltage right at the sensor, put TB back on.

i think that's the best way

For some strange reason, my TPS voltage would not read in the Hondaloger without the engine actually running. I got an extra TB, bolted it to the motor, but plugged the wiring into the TB I was trying to adjust. Started the car with the extra TB mounted, and adjusted my TB while holding it in my hand. Worked like a charm, and I now have a TPS voltage of .45 volts, instead of .66 volts.

nice

I am assuming that your TB uses a TPS with torx screws. Replace the screws with standard philip screws. Then you can buy a right angled philip screw driver. now you can adjust the TB.