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

Jackstand Queen · 02-11-2009, 02:48 AM

Is the Greddy a plug and play installation? Would you need to put in different TPS, ignition system and temperature sensors, as in the case of the Megasquirt DYI version? Would you need to rewire every wire that's goes into, or out of the current ECU?

That impressive list of mods is beginning to sound like its at the very least "in the gray zone" between needing an aftermarket EMS, and keeping the oem ECU. The EMS would need at least one programmable special control channel to run the SC clutch relay.

Another really important number in your setup is the Fuel Pressure at the fuel rail. I had 58 PSI going to my 440Cc injectors . . . doh! That was my major malfunction. I put the OEM 365's back in . . . and that got it running pretty good.

The white box on the intake with 3 wires going to is (I think) the Idle Air Control. Its located on the rear side of the TB. It has a lot to do with the warm up cycle and normal idling. I had mine adjusted with the connectors as far forward (to nose of car) as possible, and it still idled high.

Bill Clinton often said "I feel your pain". Only when I say it, its sincere. I feel your Pain.

02-11-2009, 02:48 AM	#7 (permalink)
Jackstand Queen Cage Fighter Join Date: May 2008 Posts: 840 Thanks: 75 Thanked 64 Times in 60 Posts iTrader Rating: (1/100% )	Is the Greddy a plug and play installation? Would you need to put in different TPS, ignition system and temperature sensors, as in the case of the Megasquirt DYI version? Would you need to rewire every wire that's goes into, or out of the current ECU? That impressive list of mods is beginning to sound like its at the very least "in the gray zone" between needing an aftermarket EMS, and keeping the oem ECU. The EMS would need at least one programmable special control channel to run the SC clutch relay. Another really important number in your setup is the Fuel Pressure at the fuel rail. I had 58 PSI going to my 440Cc injectors . . . doh! That was my major malfunction. I put the OEM 365's back in . . . and that got it running pretty good. The white box on the intake with 3 wires going to is (I think) the Idle Air Control. Its located on the rear side of the TB. It has a lot to do with the warm up cycle and normal idling. I had mine adjusted with the connectors as far forward (to nose of car) as possible, and it still idled high. Bill Clinton often said "I feel your pain". Only when I say it, its sincere. I feel your Pain. Last edited by Jackstand Queen; 02-11-2009 at 02:58 AM..