Fuel Issue 83 280ZX

[Arminas]

Im trying to run it as a street car for now while I build the drag motor and transmition, and still be able to take it to the track on weekends to play with at test and tune. the carbs cost me $75 a brand new intake and exhaust gasket came with the car, Im paying $40 for an extra fuel cell a buddie has and doesnt like (that I need for the drag car anyway) and he had a low pressure fuel pump that he gave me. this has cost a Lot less than figuring out the fuel injection issue. if I had a bad computer or a bad sensor it would cost me just as much if not two or three times as much to fix it. everythings buttond up now and I need the regular plugs, wires, cap and rotor tune up as well as a fluid change, oil, and coolant at least. still running the same fuel lines from the fuel injection

[sblake01]

I have stockpiled lots of EFI parts and have been trouble shooting these cars for a number of years now. I actually find them fairly simple. They are, however, much easier for me to diagnose in person than in print. In my estimation of cost I guess I sometimes forget the fact that not everyone has the parts and would have to go buy them. An 83 is outside my expertise since it has the later ECCS system which I have no experience with. In some ways it's similar but there are some major differences.

[Arminas]

my expertise is exactly the opposite, I learned to work on vehicles with old (pre 1980) motorcycles and can strip and rebuild a carborator fairly quickly and am fairly decent at tuneing one by ear/smell. the SU carborators in this respect are very nice because there more designed like a motorcycle carb than they are a traditional car carb like the one on my isuzu pup. I like Holly's for the same reason, very simplistic. I know absolutely nothing about a Fuel injected system and there just frustrating and confusing to me, even if I had to spend more money this way (and yeah I have no stockpile of Z parts except the parts that came with the car, and there were no spares other than an intake/exhaust gasket) it was worth it to me in the time/frustration department. Im much happier tearing into a carborator than sitting with a multimeter testing every circut and sensor in the car. I do appreciate your help however when I made my small and fruitless attempt to figure it out. I did find out that it was most definatly a problem with the intake dumping excess amounts of fuel. If I removed all the vaccume lines and let them draw air it would run well enough to move it around the driveway but still wouldnt rev past 4K