My car did it again so I decided to look at the linkages and all the cables looked good (couldn’t see the cruise) as it’s covered by an accordion cover)... but upon inspection the pedal cable was looooose. It would deflect by over an inch when pressed. Tightened it at the firewall and checked the click back and forth then added an additional half turn for extra loosening. Car is way more responsive. Like by far. I greases the wires with white lithium grease and pressed the accelerator a few time. Hope this sorts it.

 

It happened to me recently too. My write up is in this thread. It was the plastic protection plate near the gas pedal, holding it down. https://rennlist.com/forums/928-foru...-throttle.html

very scary!

 

Had a customers ‘88 do it also and the final solution was unplugging the tempostat for the cruise cable at the throttle quadrant. Have a replacement on hand but have yet to replace it. We did swap computers on his and it still did it. All cables except the cruise were new from when I rebuilt the engine. Once we took the cable off and unplugged it the power at the tempo all was resolved. Odd for sure.

 

The oddities of ownership. I will look at disconnecting the cruise (since I have not used it in years) and check the plastic protection panel... you never know what is the real culprit...