What is the RSM on the RB25 and having problems with firing. Alot of backfire!

[sh8ty247]

Having some problems with the start-up of my RB25 S1. Backfires and makes a popping sound. Also the coil is not hot. Any idea as to why? Could it be the harness that I had sent out? Or is this something else that I have over looked in my haste! All comments will be greatly welcomed.

[FAST-DATSUN]

Make sure you have the correct computer, check the timing belt (timing), fuel pressure ar the engine, spark plug gap, air leaks, all could cause your problem, also the more info everyone has about your problem the better help you get9 ie who many cylinder are miss -firing, do they all have spark, are the injectors firing)..

[pdvorak]

adjust ur timing(cam angle sensor) it may be ur problem.