I have a 99 Integra b18b that we have swapped to obd1. The car is 85,000kms and is 5psd. We switched it to obd1 about a month ago and no problems thus far. I am using 450cc dsm injectors and 255 walbro pump.

Then yesterday, I go to start it, and it barely starts up... it wants to turn over, but just won't! Then once I finally get it started, its barely holding an idle, at about 500rpm, then it starts to go lumpy from 500 to 1000 rpm for a few mins, then levels off to normal ~750rpm.

Now its hit or miss, sometimes it does this then other times it starts right up....
Any ideas?!?

 

Anybody? I thought it would only do it when the car was cold, then once warm it would be fine. But on my way home I stopped for gas and when I went to leave, the car barely started again!
Help....