Ok my ls swap wont start, but i know its getting plenty of fuel. It appears to be getting spark as well, i cant figure out why is isnt firing. I get a few partial combustion the first time i first start cranking, then it just doesnt combust at all.

I have replaced the sparks, plug wires and battery. I did a compression test and it was low (90psi) on all 4 cylinders, but consistent. Here are my thoughts:

Possibly bad injector seals? If you touch the injectors at all fuel start pouring out of the rail (but doesnt squirt fuel when trying to start it)... valve lash way off? Bad dizzy?

Will an obd1 vtec dizzy work on a nonvtec motor? I have one i want to try swapping in not sure if it will fit tho

PLEASE HELP! Even suggestions would help at this point

 

If fuel is coming out of the fuel rail at the seal you need to get that fixed first and foremost....you don't want a fire.

Second, the vtec dizzy will work but if i'm not mistaken only two of the three legs will line up correctly. And vice-versa...people around here sell LS dizzy's cheaper and they work the same just gotta chop off a leg.

Have you tried pulling the spark plugs and turning over your motor with no plugs in there?...It will shoot out alot of fuel if you think you flooded the cylinders.

 

A little after I did my LS swap I had the same issue. The ECU fuse under the hood had blown. Car would turn over get TONS of fuel but no start. Popped a new one in and fired right up. Just be sure to check all your fuses and your connections. Thats my .2. Hope this helps.

 

Check your valve lash.