Hi, So you ran through the list & cleaned the MAF, cleaned & regapped plugs, checked the Fuel regulator by removing the line, pull a vacuum on it and ensure you tasted no fuel? What did you find, didn’t mention troubleshooting aside from Fuel pressure (which is good)- did you also measure it with regulator unplugged ? There’s a removable plug, called a SPOUT, in the Distributors wiring, a grey jumper- verify it’s still present. That info is all useful, what did the plugs look like? This saves you $$ from throwing parts at it. Once the basics are done, then it narrows it down. Testing the TPS is another step, and make sure your 02 sensors are connected, no wires melted to the exhaust.
I’d start with a basic tuneup. I’d asked, previously- do you have an active CEL on? Replace your Wires, Cap, Rotor, plugs, If you have access to another Dizzy, by all means- drop it in. Other Wires on hand- try them, too. If you have things on hand to substitute, known to function- use them.
The grey sensor mounted on the distributor, where the wires plug into is called the TFI (Thin Film Ignition). This can be tested at Advanced Auto for free. Bring a hair dryer to simulate engine heat while it’s tested. This is another common issue.
Clean out the Dizzy’s Stator.. Before you throw excess money at this, check that. Pull the cap and rotor. The wheel that the rotor sits on is the armature. Remove the two little screws that hold it on. Take it off and clean any rust off with some steel wool & spray it out with CRC MAF cleaner. Wipe it clean. If your Stator is loose you'll have to replace it. It's easier to just replace the dizzy with a stock one. About 120$ at NAPA.
If everything else checked out OK, I’d like to know what you did find, I do suspect wires or Dizzy, but one at a time will save $$, and it will perform better than before, once the issue is cleared. Your Coil may be weak, but Coils generally work or don’t (not always). Running it in the dark, revving it will identify Cap & Wires Arcing, easily.
I’ll give you some others to test next. Do you own a Volt-Ohmeter, or a Scantool?
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