I just installed a 97 ITR ECU into my 96 GSR. I did this because soon I will install a S2 manifold and later 00 ITR cams.

After I installed the ECU, I would start the car, it would idle for 3-4 seconds and then die out. I managed to keep the car on and took it for a drive. when I got back home it would no die but would idle at 1400-1500 pm.

I pulled out the back-up and ECU fuse and waited 15 seconds. I then started the car and it idled fine but there was a strange noise coming from the TB. It almost sounded as if the TB was open. Maybe the ECU was compensating for more fuel by opening the TB and letting air in?

I took some pics. can this be fixed or is it toast?






Modified by 3_South at 5:16 PM 11/8/2004


Modified by 3_South at 5:16 PM 11/8/2004


Modified by 3_South at 5:17 PM 11/8/2004

 

put your stock ECU back in or go with a tried and trued obd1 conversion with a chipped p28 with a OE ITR map.

 

If it was running fine before put the stock ecu back in. The problem could be that the gsr manifold has secondary butterflies in the runners and the ITR does not. Just a guess.

 

no....

if your ECU is a true OBD2 P73 there should be no problems idling whatsoever. I ran a JDM P73 on my GSR with no problems like you were describing for half a year.

There shouldn't be any problems unless the ecu is fried or has bad components.

 

Car is running fine now., It just sounds as if more air is going into the TB. The ECU is from a USDM ITR.

 

so now that is runing ok would u sell ur gsr ecu?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b_cruz. &raquo;</TD></TR><TR><TD CLASS="quote">put your stock ECU back in or go with a tried and trued obd1 conversion with a chipped p28 with a OE ITR map.</TD></TR></TABLE>


That costs a lot more


There is nothing wrong with running ITR ecu w/ what he plans to do

 

Still running like ****. Put back the GSR ECU and runs fine now. Added pics

 

damn something is fried.

 

When you plugged the Type R ecu in you did disconnect the battery first didn't you?, because by not following that step you can do exactly what happened to your ECU.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Gerhard_001 &raquo;</TD></TR><TR><TD CLASS="quote">When you plugged the Type R ecu in you did disconnect the battery first didn't you?, because by not following that step you can do exactly what happened to your ECU.</TD></TR></TABLE>

Oops.

 

I did unplug the battery. My guess is that it was bad to begin with. I will be replacing it soon with another one. I never smelled anything burt at all and I have burnt up 1 ECU before and they smell like **** when fried.

 

this is a long shot - mabye it's your throttle cable??