Toyota MR2 Message Board - View Single Post - GZE swap, running rich and problems with idol.

Krimzen · 02-12-2009, 09:17 PM

I checked my ECU codes today by bridging the e and t connections at the diagnostic box. It made my engine light flash rapidly ( more than Ive ever seen) over and over with no pauses. When I un-do the bridge it turns off.

When I first start it, it runs at about 2500 RPM's and smooth. It is after it starts to warm up when the idol starts reverberating from 2000 to about 2300 rapidly. My gas response is good unless I catch it while its idling down. Power is good and it never kills the car bc I cant get the idol to drop down to 850. Really it is hard for me to tell how the engine is running with such a high RPM level.

I am not sure if I can even change the lean/rich program on my FPR. I have the pressure set at 38 PSI. The pressure fluctuates with the idol. However, I still have
10% more fuel going into the rail. Maybe the injectors are the problem. Too much volume.

I do need to check all of my sensors. I am not sure how to check some of them but I am sure that my factory service manual goes throught the procedures well. All that I have checked is the TPS, I also un-plugged the IAC and it killed the car the first time around (before the idol reverberation kicked in). After the idol reverberation it changed absolutely nothing upon un-plugging the IAC.

How can I check the knock sensor, o2 sensor, and mainly, how do I check the actual computer. Is my flashing light similar to the xbox's 3 red rings.....!

This time when I ran the car it did not smell as rich; it smelt kinda normal

Also, My batt. has been disconected for a while, do I need to let the computer go through any test procedures, or would the trouble codes still be in the system?

I appreciate all of the help.

02-12-2009, 09:17 PM	#15 (permalink)
Krimzen No Skills Join Date: May 2005 Location: Marietta, GA Posts: 65 Thanks: 8 Thanked 3 Times in 3 Posts iTrader Rating: (0/0% )	I checked my ECU codes today by bridging the e and t connections at the diagnostic box. It made my engine light flash rapidly ( more than Ive ever seen) over and over with no pauses. When I un-do the bridge it turns off. When I first start it, it runs at about 2500 RPM's and smooth. It is after it starts to warm up when the idol starts reverberating from 2000 to about 2300 rapidly. My gas response is good unless I catch it while its idling down. Power is good and it never kills the car bc I cant get the idol to drop down to 850. Really it is hard for me to tell how the engine is running with such a high RPM level. I am not sure if I can even change the lean/rich program on my FPR. I have the pressure set at 38 PSI. The pressure fluctuates with the idol. However, I still have 10% more fuel going into the rail. Maybe the injectors are the problem. Too much volume. I do need to check all of my sensors. I am not sure how to check some of them but I am sure that my factory service manual goes throught the procedures well. All that I have checked is the TPS, I also un-plugged the IAC and it killed the car the first time around (before the idol reverberation kicked in). After the idol reverberation it changed absolutely nothing upon un-plugging the IAC. How can I check the knock sensor, o2 sensor, and mainly, how do I check the actual computer. Is my flashing light similar to the xbox's 3 red rings.....! This time when I ran the car it did not smell as rich; it smelt kinda normal Also, My batt. has been disconected for a while, do I need to let the computer go through any test procedures, or would the trouble codes still be in the system? I appreciate all of the help.