i swaped out a d15b7 for a d15b8 and car cranks i have fuel, have spark, but car does not start? it almost sounds like if i dotn have enought power to crank it over, i tried a new battery with 600 cranking power and still no start, all 3 grounds on the engine are on, the tranny one, valve cover, and the battery, and the one for the harnes i have no idea im stuck any ideas?

 

check compression

 

good idea

 

chek the harnes, maybe you are missing some sensor or connector

 

not likely if he has fuel and spark

 

4 things you need fuel, spark, compression, and timing. check compression and if thats good then you know your problem.

 

Check whether the timing belt slipped or snapped, or was installed such that the cam and crank are out of time. Also check whether the spark plug wires are installed in the wrong firing order on the distributor cap. Likewise check the firing order of the fuel injectors.

 

im going to check the firing order of the fuel injectors that could be it since i did swap the harness ill have to check that out good idea!, well the motor i swaped in was sitting there about a year it was working before i took it out the original car, firing order is correct, as for timming well i can check that too can never go wrong with checking, i used the distributor from the original d157 which does not bolt on exactly to the d15 8 like i can only bolt on one, kind like when u do a ls dizzy on a b16, ill get a video up i usually can find the problem but this one is a bit more challenging lol thanks for any feedback!