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My 76 Z has had this reoccuring problemb for about 2 years. One minute ,It can be running fine and suddenly have rich mixture. While in rich mixture ,under load the engine will die at about 2500rpm. If turned off while under rich fuel mixture, the car will not restart. Waiting 20min to an hour after it happens will {usaly}usaly find it running fine again. My friends, I'm tired of getting 10mpg and being stranded on the side of the road. Please, help me.
I've tried many things to fix it. It has a new battery and alternator, new plugs and rotor.new cap and coil wire. Tried new coil. Reluctor and contacts are a bit dusty but no sign of burning. It has a 1 year old Air Flow Meter (rebuilt Motorsport) and a new fuel filter and clean air filter. I used to have two Z's and tried swapping out Air Regulator and Computer. Two of my injectors look like they've been replaced . I've had then out to clean them (and used a fuel additive) and noticed #6 had most of its ceramic broken away from the nozzle. I have cleaned the Throttle Body and ensured a clean Vacuum Advance line.
When it's having a bout of gout (rich mixture) and I'm on the side of the road, under the hood of a barely running loved one, pulling the lead from the Cold Start Valve dosen't help. Bypassing the Thermotime and Water Temperature Sensor dont help either. Pulling the Vacuum Line dosen't help. Leaving it and walking away dosen't help.
I have a Water Temperature Sensor on order, should be here in four days. If that dont do the trick, what should I try next ?
I know I'm new to this forum but I realy need some advice from people who love their Z's like I love mine, and not from someone who sees me as a customer. ($800 for new injectors [ : ( ] give me a break ) Any help from Z doctors out there would be greatly appreciated by me (and my feet). This ones got me stumped.
I've tried many things to fix it. It has a new battery and alternator, new plugs and rotor.new cap and coil wire. Tried new coil. Reluctor and contacts are a bit dusty but no sign of burning. It has a 1 year old Air Flow Meter (rebuilt Motorsport) and a new fuel filter and clean air filter. I used to have two Z's and tried swapping out Air Regulator and Computer. Two of my injectors look like they've been replaced . I've had then out to clean them (and used a fuel additive) and noticed #6 had most of its ceramic broken away from the nozzle. I have cleaned the Throttle Body and ensured a clean Vacuum Advance line.
When it's having a bout of gout (rich mixture) and I'm on the side of the road, under the hood of a barely running loved one, pulling the lead from the Cold Start Valve dosen't help. Bypassing the Thermotime and Water Temperature Sensor dont help either. Pulling the Vacuum Line dosen't help. Leaving it and walking away dosen't help.
I have a Water Temperature Sensor on order, should be here in four days. If that dont do the trick, what should I try next ?
I know I'm new to this forum but I realy need some advice from people who love their Z's like I love mine, and not from someone who sees me as a customer. ($800 for new injectors [ : ( ] give me a break ) Any help from Z doctors out there would be greatly appreciated by me (and my feet). This ones got me stumped.