hey tr i have a crx with a ls it have new diz n new ecu but some times it pass spark but some time it does not what can it be

 

Check your grounds, How old are your spark plug wires? Good spark plugs? The correct ones? If it is only running on and off it sounds like something is going out...Maybe the starter relay maybe your resistor box, There is tons of stuff it could be. Do some research on the thngs its doing.

 

resistor box is new new spark plugs n wires new starter relay new ecu new main relay n i look it up but nothing is comeing up thank bro

 

ok check the ground on the thermostat housing. but aside from that check the 2 bolts that bolt the thermostate housing to the block. if it shimmeys around at all you'll have those symptons

 

thanks bro