I'm sure there is a flow rate difference, as they have different part #s. I have 1989 B20 injectors in my 1991 b21 right now and the Bosch # on the injector body is different than on the B21 injectors I took out.Daily Interlude said:Are there differences between injectors on the B20's and B21's? I'm wondering if there is a difference and it's causing my mis-fire. I had to mix and match them because some of the B21 injectors where leaking (and one broke).
Then B21s must run OBD0 injectors, because we DO have a resistor box. Guaranteed.Daily Interlude said:Looking at some posts on honda-tech.com, I don't think I can mix and match them...
Quote, originally posted by truent »
obd1 injectors.. no resistor box.
obd0 injectors.. resistor box..
Quote, originally posted by TravSi »
opeak/hold injectors which is what obd0 hondas run
saturated which is what is on the obd1 honda
Check again!!!Red89LudeSi said:they are the exact same for B20 and B21 OR Honda would throw a different part number at each injector. I've worked for Honda about 6 years now. I promise you that the injectors are not any different, one may be bad, or the wiring up to it may have a problem. But honda is very anal about part numbers. :roll: Just trust me, for once I know what I am talking about there is A LOT of crap info in this thread, and I just want to clear things up.
Best way I know is to do what I did and send them to a shop that cleans and adjusts injectors. RC Eng. charges $100 to do four. You UPS the injectors to them - they take one or two days to do them, and then they UPS them back. It all can be done in a week, and is a whole lot cheaper than buying new ones.Daily Interlude said:Well, I don't know...maybe one of them was bad. Is there any other way to test an injector beyond doing the ohm test?