misfire

Having an intermittent misfire with my 1989 7mgte r154. Car was originally auto and manual swapped about a 2 months ago. The car is having a miss and stumble under load, and while it is doing this the car is leaning out. Its a stumble, to the point where the car jerks slightly. It is not hitting...

A little bit about my car: 1989 7m-gte, BPU (exhaust, intake, manual boost controller always @ 9-10 PSI). Over the past six months (I swear, ever since that 170,000 mile mark...) it has needed various repairs, new radiator, water pump, hoses... and this past month, it suddenly began overheating...

Basically when i put the plugs in, still thinking in a 7m point of view I gapped the plugs to like .032 ish. No codes but car runs like crap, gauge indicates up to 4 psi before totally cutting out but nonetheless only runs decent at like -1/4 Throttle. Couldnt find a cracked coil. also if at...

Here's the scenario. Vehicle: 1992 N/A Supra Engine/Harness/ECU: 1991 7MGTE Turbo: Modified CT-26 Air Flow Metering Device: MAFT w/ 3.5" GM MAF Fuel: Aeromotive AFPR, Walbro 255lph, Precision 550cc injectors, Driftmotion Fuel Damper Bypass and AFPR kits installed. Ignition: NGK Iridium...

Background of car: 560 injectors/walbro/lexus afm drilled out j tube. No regulator or tuning. Ran alright for about a year and a half so i don't know if has anything to do with me not having a tune or a regulator. I just have a light miss at any rpm. I first noticed it during a drive in...