lil_kev

I've been trying to figure out what codes my CEL is throwing but I can't seem to figure it out. I've taken a video of the CEL codes and I think they're the following:

7 - TPS
65 - Secondary Oxygen Sensor Heater wire (black wires)
70 - ???

I've tried resetting my CEL and it throws the same codes (just in different orders sometimes).

Additionally, there seems to be a weird high pitched noise when I start my car. Does anyone have any idea what that is?

Thanks in advance.

http://youtu.be/6H-Y_5y8CdA

Former User

Post your CEL video on a public site (e.g., YouTube).

VjaSMine

Think you could delete my original link and add this instead?

http://youtu.be/6H-Y_5y8CdA

Former User

Why do you have two accounts?

Codes are correct. What car do you have? Auto or manual transmission?

lil_kev

I didn't realize my brother was signed on.

What's the last code though? The one with the 7 long flashes? I cross checked it with the CEL codes list and it didn't match up with anything.

I have a 96 DX stock d16y7 with manual transmission.

Former User

Code 70 is an automatic transmission code. You have an auto ECU for a manual transmission.

CEL sticky updated to include code 70.

lil_kev

You're right. It's P2E-A71. Do you think the wrong ECU could be the culprit for the other codes as well? I was reading that you could use an auto ECU for a manual car but not vice versa. Is that correct?

This is a stupid question, but would it make a difference if I used an OBDIIb ecu instead of an OBDIIa?

Former User

You car and ECU are OBD2a, so there's no mismatch there. An OBD2b ECU would not work.

Codes 65 and 7: Check whether 7.5A dash fuse 15 is blown, and whether the TPS power wire gets 5 reference volts (from the ECU) with the key in ON(II).

lil_kev

Oh okay.

I checked fuse 15 last night. It was still good. I'll check the volts from the TPS.

Btw, did you get a chance to hear that sound right when the car started? It never used to make that high pitched sound when starting.

lil_kev

Changed the secondary O2 sensor and the TPS code went away.

Can I use a M/T EX ECU even though my car is non-vtec?