Hey guys,
I'm having a weird problem with my 87' corolla and if you could offer some advice that would be great.
The corolla runs a 4ac, which due to rough running recently got a carb rebuild. I am now tuning it and the idle was a bit erratic. So I disconnected the EGR system for now and that seems to have fixed the problem.
When I went to set the timing the engine revs would jump incredibly when approaching the recommended 5 degrees, even after backing the idle speed, and fast idle speed right off.
There is no troubleshooting description of this in the manual and I am quite stumped. :)