NoLeftTurn

Before I had the misfire, I had a stock b16a2 in my 98 ek running good on a a gsr ecu. Now I install a turbo on my car. Some mods done were walboro fuel pump, ID 1000 injectors, hondas300, arp headstuds and new oem headgasket. I also got a basemap to run the 1000 injectors. When I went to start it up, runs rough. It idles at 1000 but when pulling injectors 1 and 4, engine dies. When pulling injectors 2 and 3, no change. Same thing with the spark plugs wires. Went ahead and changed spark plugs and rotor. Visual pulled back manifold and saw injectors spraying. Also check with noid light, all lights up. I believe it does have spark because when i put a used spark plugs and ground it, it fires. Does anyone have any ideas? Also ran a compression test, 200 all 4. I noticed my fuel gauge on top of my fuel filter flucuates from 45-43. Please, any insight would help a bunch.

Former User

Did you check spark on all four plugs? What color is spark?

Did you change the cap and plug wires?

Have you tested the coil and ICM?

Any CEL codes?

NoLeftTurn

Spark plugs were a bit blackish, probably switching to id1000. So ive changed them. Should I change the cap and plug wires because I am getting spark through a used plug when I put it close to a ground. No CEL codes on hondatas300. How do you test the coil and ICM?

NoLeftTurn

Actual, just check your link, my spark color is a bit yellowish, not a bright color.

Former User

Weak spark is generally caused by a bad coil. There's a diagram in the FAQs sticky that describes how to test the coil.