How to jump the OBD2b ecu for timing


D0kt3r

D0kt3r

Honda talk
Joined
Nov 9, 2009
Messages
334
I know in honda's you have to jump the ECU connector for the timing light to work correctly.

But how do you do it on OBD2 ecu's?

I know the fact jump means the use of a jumper or a wire to connect 2 pins.
But can someone please guide me where or what exactly should I jump?

I never did this before, I am using a cheap timing light without digital reading, and I know I have to connect it to negative on bat and positive, and the magnet wire go's to spark plug cable number 1.

With the engine running on idle, I should check the marks on the Crankshaft Pooling. There are 3 marks at same distance from each other.

fisrt is 14 grade, second is 16 and thirth is 18 grade.
By moving the distributor I should get the marking centre on the midle on that is the 16 grade, and there I have the engine running on the correct timing.

Only thing I dont know is how exactly should I jump the OBD2 ecu.

Any pic or diagram that can be a guide for me, will be helpfull.

Thanks in advance :drive:



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ek4 hatchback said:
There should be a 2 pins connector above the ECU to short.
Click to expand...

Here is a pic of my ecu, where are the 2 pins??

dsc03106d.jpg

By d0kt3r, shot with DSC-W130 at 2010-02-08
 
Marco said:
Must jump the service check connector, the blue connector. Its not inside ECU

On my 99 ek4 the blue connector is on center dashboard, on 96-98 EKs are near ECU

http://alflash.com.ua/Honda/scCivic.jpg

http://ww2.justanswer.com/uploads/02hondafreak/2009-01-20_222119_0900c1528005f5b1.jpg
Click to expand...

To understand you better, this is blue connector is a open connector? So not connected anywhere.
And I have OBD2 ecu and B16B engine, but swapped into EG6.
EG6 blue connector is same near ECU as from on 96-98 EK's??

I have took out my OBD1 ecu and now after swapping my OBD2 so many time's, but I never have seen this blue connector. Maybe its hiding somewhere under the dash, next to the ecu.

Thanks for the info and photo, I'm getting closer

cheers :thanks:


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The blue connector its a open connector.

I think EG6 its same as EK 96-98, near ECU.

In EK 96-98 the blue connector its atached on that green rubber, just for hang the connector.

Look for SCS connector in google in EG6, maybe can help u

sorry for my english
 
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