Yun_Ej2

So my car just got a cel code 7. I got a new tps and the problem still persists. The car was bogging so I unplugged the tps and it still bogged. Is the problem my ecu? Thanks.

Former User

Test the three TPS wires. Does the TPS plug get 5 reference volts from the ECU with the key in ON(II)?

Yun_Ej2

It didn't get any volts.

Former User

What car???

Which TPS wire did you test for voltage?

Yun_Ej2

It's a 1994 Honda Civic CX with a d15b7 and p06 ecu. I tested the red wire in the middle.

Former User

Do you mean Red/Blu wire? You need to measure voltage on the Yel/Wht wire.

How did you do the voltage test? Was the key in ON(II)? What did you use as ground in the test?

Yun_Ej2

Yes sorry the Red/Blue. And I turned the car on and back probed the wire and put the ground on the negative side of the battery, yes the car was on.

Former User

Unplug the TPS connector and turn key to ON(II) [engine not running]. Compare voltage on the TPS Yel/Wht wire when using the TPS Grn/Wht wire versus (-) battery post as ground.

Yun_Ej2

I just went to go check and it had 5 volts.

Former User

Using either ground?

Yun_Ej2

Correct

Former User

Test 2:
Reconnect the TPS plug and turn key to ON(II) [engine not running]. Backprobe the TPS Red/Blu wire (+) and the TPS Grn/Wht wire (-). What voltage do you read?

Yun_Ej2

I tried that once, prior to this and it wouldn't read anything.

Former User

Try again to verify. Make sure you are making good contact with both wires.

Yun_Ej2

Okay just tried it to verify again like you told me too, and its still not reading anything.

Former User

Unplug the TPS connector and turn key OFF. Check for continuity to body ground at the Red/Blu wire terminal in the TPS connector.

Yun_Ej2

Ok Ron I have some things to do real quick and then I'm going to get right back at it. Thanks for all the help so far its much appreciated. I'll let you know when I go check the continuity.

Yun_Ej2

Theres no continuity Ron.

Former User

Your test results point either to a bad TPS plug, bad TPS, or bad connection between the Red/Blu wire pin in the plug and corresponding contact point with the TPS.

Start here:
Unplug the TPS connector and turn the key off. Measure continuity/resistance between the Red/Blu wire pin in the front of the connector and some point in the Red/Blue wire behind the connector (pierce through wire insulation). Is there continuity?

Former User

You needed to test for continuity to body ground. Is that what you did? Testing for continuity is different.

Yun_Ej2

Still no continuity.

Yun_Ej2

By hooking up the ground to anything on the body correct?

Former User

Yes

Former User

For which test?

Yun_Ej2

The test where you told me to pierce the wire.