Ok so i found my old tps was broken so i bought a new one.

put it on. and get crazy high volts.

iv done some testing as follows.

c12 and c13 i have 4.95 volts that correct.

but when i test voltage between c7 and c12 i get 27.XX mv so i ran a new red/blue wire and still same thing.
Any ideas??

Also I have tried another ecu same thing

91 hathc dpfi to obd0 mpfi
dohc zc
vitara
eagle rods
chipped pm6

 

did you adjust your tps correctly to read the correct voltage at closed throttle and wide open throttle?

 

make sure you installed your tps correctly. the spring should have a preload on it with the TB closed. so make sure that the tab of the TPS is inserted into the seating of the housing.

 

Thats what im trying to do. but my signal wire is getting 27 milivolts.


Ya mean just make sure the notch is line up with the notch on the tps right? or are you saying something different

 

In the first post, you must provide all pertinent information about your car and engine.

 

So make sure your tps lever is installed in here. It should be off centered from the holes at first. you would then have to turn the TPS a bit for the screw holes to line up. then plug it in and stick your multimeter in there and adjust it by turning it till you get to around .5-.56 and tighten.




Heres the link I got that from.

https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/official-honda-tps-wiring-calibration-thread-2830131/

 

Ya its in there i did it a few times to make sure lol.

But i need to correct something from first post. its not 27 volts in my signal wire its 27 mv, this will change the mv when the tps is moved or throttle is opens.
I dont get a full volt in this.

Info about car added also

 

What car and engine harness?

 

Fixed

 

Check the voltage between the Grn/Wht wire and Red/Blu wire by back probing the TPS connector. What voltage do you read there?

 

with out moving the tps just were its at 27 mv. red?blue wire and the green

green and yellow i get 4.96 volts

here is the meter im using and i set it to 12 volts

 

is 4.6v WOT?

 

The only time i get 4.96 volts is checking the actual power wire, the yellow wire,
the signal wire the red/blue i get millivolt readings

ill make a vid gimme few min

 

You did the test with the TPS and ECU connectors plugged in, right?

If so, either your new TPS or the TPS plug is bad.

 

Ya was all plugged in.
I tested the old tps with same results also.
Also no code for the tps.
reason i replaced the old tps cause it was broken.

Here is the vid
first reading is the yellow wire, dmm clearly shows 4.96 volts
2nd reading is the red/blue wire, the i wot it. i try to turn the tps but ran outta time in the camera lol
http://www.youtube.com/watch?v=NRobM...ature=youtu.be

 

You are measuring voltage at twisted wires near the TPS plug. Measure the voltages by back probing the TPS connector.

 

Its the same, All the bare wires are from running new wires ill get that replaced in a bit.

But I brought in my 93 ex. tested it by back probing and still get the millivolt readings. So i assume it must be the dmm not being able to set to 20v.

the 93 tested at 33.XX mv and .333 volts. So i just set the 91 to that lol.

Time for a new dmm i suppose

 

Doesn't make sense. The meter reads the input 5V just fine. So at WOT you should read the voltage (~4.5V) correctly.

 

I know man I hear what ya your saying and im dumbfounded also lol.
But my 93 reads the same lol.

Only one thing it could be the dmm. Right?? Lol Ahh I hate this car you have no idea of the problems that I have had..

Well r\prob still have since this prob wont fix the damn thing.


Lets get ya to 26,000 post lol almost there.

 

Your multimeter dial should be turned to the same position as in post #11. The video shows the dial in a different position. Post a clear picture of your multimeter.

Haha...26,000

 

That stock photo is the exact same one i have i have is set to green 12v


Lol congrats

 

This^ is why you're readings are strange. You have the meter set to test a 12V battery. Dial the meter to the red DCV position, just like the picture in post #11. Then, redo your voltage tests.

Haha...Thanks

 

Lool ya that worked change the setting to post #11

Best i could get was .64 closed and at wot 4.51 volts.


Thanks Ron

 

Should I make a new thread for thisor not. Take a look see what ya think

No codes at all

 

At closed throttle, you need turn the TPS until the voltage reads approximately 0.5V. If you can't do this, make sure the throttle is fully closed.