del-sol-timr

I have a 97 del sol SOHC. The other day it was running fine and 3 minutes from my house while climbing a hill at interstate speeds, the engine began to misfire and the CEL began flashing. I made it back to my house with limited power and continual misfiring. At idle, it sounds like a baby muscle car. The initial CEL code was misfire in cylinders 1,2, and 4. After troubleshooting and removing the ground from battery; CEL code of only misfire in cylinder 2.

I checked fuel pressure between the fuel filter and fuel rail. Fuel pressure tested ok.

Running: 44psi
After off: 42psi
After 30 min bleed off: 38 psi

During this process I also removed ground from battery and decided to re-check CEL. CEL this time was misfire in all four cylinders. I proceeded to check spark plugs and wires. All checked out ok. I have good spark on all 4.

I visually inspected inside of distributor and everything also looked in good condition here.

Again removed ground from battery, ran the car, and re-checked CEL this time misfire in cylinder 1 and 2.

I did a cylinder drop test and dropping spark to cylinders 1 and two seem to have no affect on the engine.

The misfire codes are the only ones I am getting.

I plan to test the ICM next, but would love to hear some suggestions!

Thanks in advance!

Resurrected_EJ

ok anyone correct me if im off base here i dont claim to know everything but the ignitor in the distributor maybe??

Former User

How old are the plugs, wires, cap, and rotor?

You also should test both the coil and ICM.