nyuke

I bought a used ignition today with immobilizer and a used Ecu from someone, P72 OBD2B. The car starts, yes Idk how it started after reving for 4 seconds since I though it wouldnt start if its immobilzed. After it starts, I have a Check engine light on, code P1607. And when I start it, it doesn't show the green key on cluster. Does anyone know what the issue could be? Im kinda thinking the Ecu doesn't have immobilizer because it was taken off probably. Look at the pics.




PLease help me out here, I need that check engine gone and if i reset it, it comes up again after starting engine. I got inspection in a week. need help ASAP.

xero_xero

the immobilizer has simply been removed. it throws a code because it did not have a blank chip reinstalled. if you look at your bottom pic (even though it is blurry) you can see where the immobilizer was. it has 12 solder pins where it was either de-soldered or bent off. Immobilizer board pictured below.



to stop throwing the code you will need a jumper board installed.

keepinitrehaal

Good info!

nyuke

So where could I buy the stock immobilizer board and how much would it cost? And would I have to reprogram it?
Another question, What if I convert my harness to OBD2A and get a OBD2A ecu. Will that work? Will it spit out any CEL code??
ANother option I was thinking was convert to OBD1 but I think it will spit out the CEL code because I got a immobilized Ignition on my 00 GSR. Please let me know. I need no CEL or codes inorder to pass inspection and emmision in a week. GEt back ASAP.

xero_xero

as far as emissions go, you will need ODB2, you can not run odb1. the code reader will not read the code and YES they will plug it up. It will not kick a code for the immobilizer for odb1 because it does not look for anything related to immobilizers.

you will need a key/ecu pair for 00-01. this is where friends come in. borrow their ecu (odb2b without immobilizers - doesnt matter if it is ls, b16, or gsr JUST NO IMMOBILIZER) plug it in and go. if you run odb2a you will need a jumper harness.

nyuke

Well I got a OBD2B ecu without immobilizer like shown in the picture I posted. It was removed but it gives me the CEL light and code and I wont pass the emmisions nor inspection. If I borrow a friends 00-01 with removed immobilizer, it same thing as mine then.

Is there a place i can buy that immobilizer and solder it back? Or some kind of chip for it?

I was going to just buy another ECU with immobilizer this time and ima check that immobilizer is there and ill just reprogram the ecu.

xero_xero

If you have an ECU that has an immobilizer and remove the immobilizer without replacing the chip with the dummy chip labeled immobilizer replacement board, then it will have the p1607 error code.

if you decide to replace the ecu, the cheaper way would be to replace with a 99 and down odb2b ecu. NO IMMOBIZERS are located in these ecus.

if you purchase a 2000-01 GSR ecu, then you will need to have the computer keyed as well,

nyuke

Gotcha. Just more my info, where would I buy this dummy chip?

Update: I bought another GSR ECU and this time i made sure it had the immobilizer. Green key blinks now. Just gotta get it keyed this weekend and hopefully eveything will be good.

94EG8

Yep.

'99 and below ECUs are all OBD2A as far as Integras are concerned.
'96 - '98 Civic -> OBD2A
'99 - '00 Civic -> OBD2B
'96 - '99 Integra -> OBD2A
'00 - '01 Integra -> OBD2B (Immobilzer Equipped)

To the OP, seeing as how you already have a GS-R ECU, just buy a dummy immobilzer chip and solder it on.

nyuke

I did my immobilizer reprogramming this weekend and all works great now. $50 to code it from a person I know.

PaChiLa Leader

wow really?
how does he do that?
does he work at the dealership?

i have heard HONDA & Acura use different system for imm. code
can you confirm it with that person you know to see if it's possible to get HONDA dealership to reflash and reprogram my ECU?
i too made the mistake and bought an OBD2B P73 ecu but no keys so the car won't even start
thank you

racebum

can't you just remove the immobilizer board from the ecu

PaChiLa Leader

if you ask this question then i am sure you are pretty clueless

let me put it this way, would you like to have check engine light in your face all day long?
if IMM is removed then the CEL stays on. Got it?

hectorgsr88

hey everyone.. i got a 2000 integra gsr and long story short my gsr was sitting for 2 months and came home thought battery died and got a new one and car turns over but wont start.. i had a new main relay put in.. new distributer and nothing.. took to a shop had aftermarket alarms taken off and guy told me its either my ecu or imobalizer.. noticed green key light doesnt light up at all and it should,,what does that mean??

racebum

let me put it this way, if you can't figure out how to remove a bulb i am sure you are pretty clueless

hectorgsr88

hey queston... i got a 2000 gsr and my buddy has a 97 gsr soo no imobalizer in his can i use his just to get the casr running? or will my key ignition not allow it? because rite now my car doesnt show the green light at all and will turn over but wont fire.. and im ordering a new ecu 2000 how do i program it? do i have to take the car in or can i just take the ecu? an the ignition with key? thanks

racebum

you would need an obd2a to obd2b jumper harness, should work after that. the anti theft is all in the ecu to the best of my knowledge

PaChiLa Leader

your car is OBD2B
so the harness you will be needing is OBD2B to OBD2A
not OBD2A to OBD2B

yeah your car will start no problem.

hectorgsr88

okay.. if i got a new ecu for it where can i get it programed at and keyed? and do i have to take the car in or just the ecu? those harness are not cheap soo im just going to buy a new ecu..

PaChiLa Leader

what da heck are you talking about?
this will be a straight swap
your swap in the ecu and you are set. you use your own ignition key to start your car and thats it.
harness are no more than 60 bux on ebay.
OBD2A ecus are like $100~150 a pop.

hectorgsr88

i am going to buy a brand new 2000 gsr ecu obd2b its imobalized.. and i herd you need get it keyed.. and programed.. so how does that work?

i was going to use my freinds ecu just to see if the car will turn on thats all and give his back..sorry for the confuseing you

racebum

didja herd that, whole herd of dem der ecu's out in the field


this making fun of your english, or lack there of brought to you today by idrivesideways inc

PaChiLa Leader

if you buy the harness or even borrow one from someone local your can should start fine with your buddy's OBD2A.
if you are buying a brand new ECU/ECM from the dealer.. they will charge you lots.. so get ready. i am pretty sure if you buy the ecu from the dealer they will reprogram your keys for you so don't need to worry about it.

unless Immobilizer comes handy to you, else your best bet is still buying a used OBD2A GSR ecu (96-99) and the jumper harness and it's going to be a lot cheaper and hassle free.

how much is the dealers charging you? $1200?

hectorgsr88

well im getting the ecu for 270 dealer price because my freind works for a dealer but he cant program it..soo i either need to go to a acura or honda dealer.. but can honda do it also? to get it programed.. because i am going to take the car to them because i herd you need to take the car in is that true? and i herd to get it programed and keyed its 250 to 300 dealer...let me know thanks!

hectorgsr88

another queston... the green key lite on the cluster what is it for? rite now with my old ecu it doesnt show it at all and the car turns over but wont fire..does that mean it went out or the anti theft is on?