sr20 starting problem

my sr20 is in and it is getting spark and gas but right when it turns over it backfires and cuts out i think it maybe timing but im not to sure. also i just realized that i was sent a s 14 ecu w/ my s13 engine could this be the problem

I'm not 100% positive but I have been told an s14 red top and s13 redtop are the same thing just one is newer. If you did your own wire harness or if you didn't I would double check it. My friend had unknown problems for MONTHS it would do that and then it would run fine the next day, or you could be driveing down the road pulling hard and strong then it could start sputtering. This was caused by the jack ass that did his wire harness. After 3 months of problems (started 1 month after being on the road) we found it was shorting between the firewall and the engine where you couldn't even see it. It was crazy but fixed that and it fixed the problem.

the S14 ecu is totally different than the S13, will not work. S14 has variable valve timing, a boost pressure sensor, and the pins for the spark plugs are in a different places. Stop all attempts to start it in this configuration or you can damage your engine. Get an S13 ECU. Blacktop or redtop should work. Dont use the S14 or S15, it is suicide.

so it is definantly the ecu then the guy working on it was thinking the timing chain tensioner was the problem that my be part of it but its deffinantly the ecu? would the s14 ecu keep it from even starting?

god damn the company that sent me that fucking ecu then

tell him you want a s13 ecu and then you will send back the s14 ecu


its not like the sr14 ecu is worthless, its probably worth more money then the s13 ecu...