My idle issues
Posted: January 3rd, 2011, 5:53 pm
Okay so first off in case you didn't know, here is my car (though i bet you do hahahah)
'92 MX-3 with Protege 1.8 BP swap.
Ford Escort intake manifold and throttle body
BPVR ECU
MX-3 wiring harness with VICS working and using the MX-3 FPR
All new vac lines, and new heater hoses.
Using MX-3 thermostat, rad fan switch, water thermosensor, and dash temp. sensor
BP rebuilt with:
Rock auto water pump
Rock auto engine bearings
NPR piston rings
PCI Timing belt/tensioner set
Apex lower seals/gaskets
ITM upper gasket set
New style lifters
NGK iridium plugs and new wires.
Kia transmission with OEM style flywheel/clutch and short shifter.
Now here are my idle issues. Most of the time when I first start the car it runs high. Usually around 2k RPM. Once fully warmed, it usually runs around 1.5k RPM. if I keep driving it it will eventually drop down to where it should be.
If I re-set the ECU, it will idle fine.
however, this isn't what bothers me. What bothers me is when I press down the clutch pedal. The Idle will drop a good bit when pressing down. Like.. it will go from 2k idle to 1.5k idle. And if the idle is where it should be (~900 rpm), when I press in the clutch it almost stalls.. and has stalled on one occasion with how low it goes).
Any ideals why these would happen? I have tried adjusting the idle (run car to warming, shut off, jump TEN and GND, start car again, adjust), and have the distributor timed right. The Idle adjustment screw, btw, is as low as it can go. And it does idle fine if I reset the ECU.
Just getting some ideas up. This hasn't much bothered me but is an inconvenience. I just hate to see it idle so high when I know it shouldn't, and hate how it drops with clutch engaged.
'92 MX-3 with Protege 1.8 BP swap.
Ford Escort intake manifold and throttle body
BPVR ECU
MX-3 wiring harness with VICS working and using the MX-3 FPR
All new vac lines, and new heater hoses.
Using MX-3 thermostat, rad fan switch, water thermosensor, and dash temp. sensor
BP rebuilt with:
Rock auto water pump
Rock auto engine bearings
NPR piston rings
PCI Timing belt/tensioner set
Apex lower seals/gaskets
ITM upper gasket set
New style lifters
NGK iridium plugs and new wires.
Kia transmission with OEM style flywheel/clutch and short shifter.
Now here are my idle issues. Most of the time when I first start the car it runs high. Usually around 2k RPM. Once fully warmed, it usually runs around 1.5k RPM. if I keep driving it it will eventually drop down to where it should be.
If I re-set the ECU, it will idle fine.
however, this isn't what bothers me. What bothers me is when I press down the clutch pedal. The Idle will drop a good bit when pressing down. Like.. it will go from 2k idle to 1.5k idle. And if the idle is where it should be (~900 rpm), when I press in the clutch it almost stalls.. and has stalled on one occasion with how low it goes).
Any ideals why these would happen? I have tried adjusting the idle (run car to warming, shut off, jump TEN and GND, start car again, adjust), and have the distributor timed right. The Idle adjustment screw, btw, is as low as it can go. And it does idle fine if I reset the ECU.
Just getting some ideas up. This hasn't much bothered me but is an inconvenience. I just hate to see it idle so high when I know it shouldn't, and hate how it drops with clutch engaged.