Afternoon all,
My dad's at his wits end with a Renault Alpine GTA Turbo that he's got. I believe it uses a Renix ECU.
The symptom is that when it gets hot, it starts to hunt - and won't build any power. Eventually it'll cut out, or just continue in its hunting cycle, down to nigh-on 0 RPM then back up to 700 or so. The engine electronics warning lamp flashes during this, and occasionally will glimmer while driving.
You can cycle the ignition, and the same fault will persist.
I've not looked at the car closely myself, but I can tell you the following has been changed:
- Plugs
- Coil & module
- Leads
- Crank position sensor
- Oxygen sensor (I think)
It's also had some restorative work done to the wiring harness and ECU (dry joints).
It appears to do the same thing with the TPS unplugged, and I'm told it still does the same with other sensors unplugged - but I was wondering if anyone could give me a bit of a steer as to where to start.
It's a shame, because otherwise it runs fine when cold and drives very sweetly indeed. That, in my mind, voids any problems with the fuel side of things. Might be wrong, though.
Half inclined to see if I can get it to run in open loop all the time, which might negate whatever's causing the issue - or prove the fault really does lie elsewhere.
Any pointers, so I can jump in better armed? Cheers! Want to inspect the idle air control system myself, but yet to have the chance.
Lewis
My dad's at his wits end with a Renault Alpine GTA Turbo that he's got. I believe it uses a Renix ECU.
The symptom is that when it gets hot, it starts to hunt - and won't build any power. Eventually it'll cut out, or just continue in its hunting cycle, down to nigh-on 0 RPM then back up to 700 or so. The engine electronics warning lamp flashes during this, and occasionally will glimmer while driving.
You can cycle the ignition, and the same fault will persist.
I've not looked at the car closely myself, but I can tell you the following has been changed:
- Plugs
- Coil & module
- Leads
- Crank position sensor
- Oxygen sensor (I think)
It's also had some restorative work done to the wiring harness and ECU (dry joints).
It appears to do the same thing with the TPS unplugged, and I'm told it still does the same with other sensors unplugged - but I was wondering if anyone could give me a bit of a steer as to where to start.
It's a shame, because otherwise it runs fine when cold and drives very sweetly indeed. That, in my mind, voids any problems with the fuel side of things. Might be wrong, though.
Half inclined to see if I can get it to run in open loop all the time, which might negate whatever's causing the issue - or prove the fault really does lie elsewhere.
Any pointers, so I can jump in better armed? Cheers! Want to inspect the idle air control system myself, but yet to have the chance.
Lewis
