SR20DET idle problems and stall

[sebastianwrx]

ok guys this maybe 1 of random weird thing that happen to my car ..ok well my sr20det black top (AKA P.O.S) just got done broken in already ..so yesterday we changed the oil to synthetic mobil1 15w50 and so that night we try to set up the boost controller with apexi AVCR to get the boost right ...car runs awesome even though we didnt get what we want for the set up ....and so car at idle That night was 14.7-15 ..on boost 11.1-12.1..curising was 14-15.4 which its fine and idle was fine even on boost ..so this is where the weird thing begin...i start up the car the next morning AFR read from 15 to 18 in no time ..leans really really bad and so i shut the car off and car won't idle right and within 3 sec the motor just stall ??...i know right ...so i keep trying and put a lil gas and smoke came out ...i check injectors and spark plugs , O-ring etc and everything its fine ...i thought its the maf and so i borrow my buddy z32 maf and still the same ...so what could that be guys ..i was gonna buy 02 sensor and the price its like 100$ and what if its not the sensor also...please please i beg u folks to pitch in any info or any idea or story that happen to u guys before or recommended what should i check cuz iam just out and no idea which one to check ..thx

[sebastianwrx]

bump.....anyone

[Vernal]

intake/vacuum leaks?

[sebastianwrx]

nope i double check in all the leaks, intercooler, etc ..even the boost gauge was steady doesnt show no leaks ..its weird i dont know where iam suppose to look cuz last nite car was drive fine

[sebastianwrx]

Anyone.....

[jigga1boy]

ran into this a couple times. make sure cts is plugged in, its small so it can come loose out the plug. clean your maf, if you have apexi safc or anything electrical make sure those are plugged in, wires are good, and the harness inside the safc itself is good. (unscrew, open the unit and plug it in snug)

make sure your getting fuel and correct pressure with the fpr.

run codes for ecu and see if its showing anything just incase, try unplugging the maf and running it. see if it runs in safe mode.

last but not least....

when i went thru your problem from time to time. each of the above methods helped me...till one day i redid all the above and nothing worked.. I REDID TIMING!!!!!!!!!!!!!!!!!!!!


now my car runs and stays on, idles so smooth and all but my afr is leaning on idle and leaning out in general... so thats my problem but a great solution for you.