How to swap E.C.U.'s

[dunit121]

Here is how to swap out an E.C.U.

What you need:
10mm socket
ratchet

1. Turn the car off and take the key out of the ignition
2. Pop ur trunk and go under the trunk mat to your battery
3. Take the nut off the Pos lead and take the pos lead off
4. Take off the nut for the Neg lead and take the lead off
5. Go under you hood and take the harnest's off the ECU
6. Pop the old ECU out
7. Put the new ECU in
8. Put the harnest back on the ECU
9. Put the Positive lead back on the battery first
10. Put the negative lead back on the battery
11. Tighten both nuts on the battery
12. Turn the key to ACC leave it there for 10 secs
13. Turn the key off take it out. then put the key back it and crank up the engin
14. Let it idle while you reset your clock and radio's EQ

[bryson87]

care to explain steps 12 and 13?

[dunit121]

i fixed it a little did that anser ur question?

[bryson87]

no im wondering why you do this. im a tech and ive never done that. i just put it in and go

[dunit121]

ooooo .... ive always done it this way but because atleast in the TC's if you go to just crank the engin it will not start and you will have to re crank it beacuse the ecu needs to talk to the bcm or w/e its called... its weird but i actullly just went ot crank it the other day by mistake and it didnt work

[bryson87]

alright i wasnt dissing it just wondering. thanks for clearing it up for me

[BlkBalt86]

What is an E.C.U.

[dunit121]

Originally Posted by bryson87 alright i wasnt dissing it just wondering. thanks for clearing it up for me

no prob i was just confused about the question

Originally Posted by BlkBalt86 What is an E.C.U.

electron controll unit