Hello all,
I have a 98 civic I just picked up for 400 and it has me stumped… I dropped my good Y8 swap in it drove it to work Monday ran fine, got a battery light so I replaced alternator. Started the car no more battery light, all good, so I went on to fixing a VSS issue I had, the yellow wire for vss was broke back in the loom behind block so I repaired that.. put it all back nice and neat.

when I was putting the thing back together like a bone head I don’t know how I had missed disconnecting the battery and when I was putting the 10mm nut back on my alternator i jumped it off the IM and sparked pretty good.

So now the darn thing just cranks I’ve checked all relays, fuses and famous #15, all good, pump good, fuel at rail, #1 plug fires.. so did I fry my ecu? Dizzy? Thank you for your time.

 

Are you getting spark? Are your injectors pulsing? Is your fuel pump priming?

 

Went through literally everything on the car, didn’t make sense. Only thing I found was spark died off the longer you turn it over and the plugs were still dry.
So I took the harness back out of the car went over the whole thing and the main thermostat ground was only attached by 1 wire.
Repaired the break, put harness back in and fired right up. Next time I’m going to be a little more careful with these 20+ year old engine harnesses. Thanks. Chris