stumble

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...

I just started getting a code 14 suddenly tonight. The engine seems to be running fine except once it warms up it starts stumbling and the tach drops quickly a few hundred RPM and then goes back up. It idles fine and runs good for about 15 minutes, but as I said once it warms up it stumbles...

Just bought an 87 USDM Turbo and it is stumbling at 5PSI. It has a rebuilt head, HKS stopper HG and ARP studs as well as a Walbro 255. Everything else is stock. Car stumbles when you get to 5PSI and slightly bucks. Any suggestions would be greatly appreciated. Thank you in advance. Just...

BACKGROUND; I have had an 88 Mk3 supra in my garage for 4yrs. I blew out the original engine which was a 7MGE. I replaced it with a 2JZGE from a Lexus SC300. I finally got the thing to start, but.... It surges. PROBLEM; So, it surges at idle. I drove it to the end of the block and back (.5...