83 Toy

Thank you all for the advice. A friend recently told about Mike's Z Shop in Whittier. We were thinking about taking the car there. Do you know which place is better?

Thanks for the advice re replacing plugs and checking ECU. I'll give the ECU a swift kick and let you know and let you know what happens .

Yeah, we just got lucky with the car. I've never seen anything like that at a yard sale! I could have easily replaced the FPR myself but I had already paid $$ upfront for a diagnosis. They applied the money for diagnosis towards installing the FPR. The cost was a wash and I don't have a pressure gauge for diagnosing. The pressure was around 20 and 38 is recommended. So, theoretically, the fuel pressure was too low but the car ran better than it does now. Not sure why.

Just picked up an '83 ZX turbo 2+2 at a yard sale. Body/interior are beautiful. Engine clean. However, the idle is rough and it chugs at low RPM and very poor acceleration. Nissan installed a new fuel pressure regulator but now it runs worse! Any suggestions what to do next? Any advice is very welcome.