Anyone please tell me how to adjust TPS, I've digital meter on hands, people say i need to rotate it, is it throttle stop screw? c't see anything i can rotate?

Thanks..

 

In order to adjust the tps you will have to slot the mounting screw heads with a dremel tool, hacksaw, file etc. in order to be able to loosen them with a screwdriver. The engineers at Honda thought it would be a good idea to make everyone who needs a new $10 sensor to have to buy a $300 throttle body. Anyway, I think the middle wire is the wire the ECU senses and you need to adjust the tps so that at closes throttle it reads about 0.5 V and at WOT it reads about 4.5 volts. You may need to also adjust the idle at the same time in order to achive these values. If you can't adjust the tps to close to these values, buy a used throttle body (most any honda TB will work) and replace either the tps or the whole TB.

 

My TPS out of range less than .5 close, 4.5 WOT, So do u mean TPS is non-adjustable without taken off the TB?


[Modified by evo, 8:43 PM 4/6/2002]

 

I'm not sure if you meant 0.45 volts at WOT or 4.5 volts at WOT. You could be reading the wrong wire, check the other two wires to make see if they vary with throttle position. It may vary by model as to which wire is the variable voltage. The other two wires should be constant ground and +5.0 volts. If it is really reading only 0.45 volts at WOT your tps is shot. 4.5 volts on the other hand is normal. If it reads a little less than 0.5 volts at idle and you don't have any idle problems it's probably fine. Other wise turn the tps after loosening the screws to get the 0.5 volts.

 

Yes, the tps isn't meant to be adjustable from the factory. You may be able to slot the fastener heads and loosen them while the TB is still on the car but it wouldn't be easy.

 

heh, when I put my JG on, I didn't know what the hell was up with those and ended up drilling them out, backing them out...after I called a couple parts stores and had them tell me the TPS was like $80-140!!! so, yeah...just thought I'd share.

 

After I read this http://www.lyonel.8m.com/adjidle.htm my question come up immediately, It shown the TPS can be adjust. Someone has reply it c't be adjust?

 

From the factory many of the TBs I've seen have the tps attached with screws that have no feature on the head to tighten or remove them. Meaning they are blank, no slot, no phillips nothing. Makes me wonder how they install them in the first place. I have a JDM throttle body that used torx head screws to attach the tps but the USDM TB's I've seen use the blank screws. That doesn't mean it can't be adjusted just that you have to do a little more work to adjust them by filing a slot into the head of the screw in order to loosen them enough to turn the tps. Loosening those screws is the only way to adjust the tps.

 

What is the top sensor called? I was looking into the JG 65mm t/b and it comes with the tps on it already. But I need to install the other sensor, does this need adjustments too?

 

I think your referring to the MAP sensor.