I dropped in my B20vtec (OBDII, EK Hatch) last week and so far put 600 miles on it. It's not running perfectly yet. Here are a few of the symptoms:

1. The idle varies from 600rpm to 1,700rpm from time to time. Sometimes it gets so low that the engine dies.

2. Sometimes when accelerating, my reving becomes "restrictive" around 2.5-3K rpm. I give it gas, but it barely goes anywhere. And sometimes it jerks.

3. I have a sprung 6 puck clutch. It's hard to engage in first gear unless I give it around 2.5-3K rpm at a normal driving take off. Any less than that range of rpm during clutch engagement and the whole car will jerk.

*Possible causes:

-FPR, too low of pressure?
-Bad distributor
-2 (two) O2 senors hanging out of it's socket
-Using a First Gen B16 TB, bad TPS?
-Timing

These are just a few things that I suspect. It's not throwing any codes. If any of you guy have experienced any of these, please help me out. TIA.

 

fpr or ecu

 

Anyone else?

 

idling might be related to timing. is it throwing any codes?? what ecu are you running?

 

I'm having the same type of problem with my obd 0 b18a in my 89 crx. hmm..check my post in the crx forum maybe for a little help...except im getting a code 14...EACV. or IACV or whatevr.

 

It's not throwing any codes, I'm using an ITR ecu.