Hey guys i have a stock b20b in my 92 civic hatch and it wont redline past 5800rpm!!! Im running on a stock po6 ecu. Obd1, my distributer is fine all check engine is on but only because of 1 of the throttle body sensors, when it was on my car would only redline at 5500 when now thats the lights on it redlines at 5800! Wth? So im stuck. I can use great thoughts and skills please!

 

running the b20 off a p06 is 1 guess.

which sensor is it? tps, map?

 

It sounds like the coil in ur distrubutor man i was having the same problems

 

same thing happen to my first ls bad coil, just to trouble shoot it borrow a friends dizzy real quick and slap it on yours to see if it works, i don't remember if the p06 is a vtec ecu or not but don't run a vtec ecu without vtec on the motor you get by with a d15 ecu for a lil while but run a ls ecu as soon as you can get one.

 

Could your ECU possibly be in limp mode? And why not switch to a P75 OBD1 LS ecu? I am thinking the fuel maps and overall factory tune would be better than running a D-series ECU..... (correct if wrong)

 

the tps sensor

 

and i been looking for a p75 obd1 ecu too but couldnt find any. and my cousin has 1 in his ls hatch and i tried it in mine but it still wouldnt go past 6000 and his ls hatch redlines at 7200. and the p06 ecu is a non vtec d serious ecu.

 

so most of you guys said my distributer so i could try to give it a look or try to borrow a buddy of mines dizzy, thanks!

 

already tried my buddies p75 obd1 ls ecu but my car still only redlines at 6 and idk if its running in limp mode or not

 

Before you try to fix one issue you need to get the others straightened out to eliminate them as part of the problem. If you are really running a P06 stock ecu on a B20 you are going to be running REALLY lean and your motor won't last long.

1st: Get the correct ECu or at least chip yours to run the motor
2nd: Fix the TPS code.
3rd: Then troubleshoot the redline issues.