93 hatch with b18b swap

[Ritzbitz]

Ok guy I have a 93 eg hatch with a 95 b18b manual rumning off a p73 with ls stock maps. Im having an idle problem when I run the car hard ( switching gear at 5k). When I come to a stop my idle drops down to about 400 and car bogs but doesn't stall. I can drive it but it hesitates and feel like it misfires, I have to turn the car off and start it back up and everything goes back to normal (idle goes to 900 and no hesitation). If I drive the and swift a 4k it won't do it. Any suggestion on where to start?

 

[primeredseol]

maybe the fast idle thermo valve (FITV) on the bottom of the throttle body, needs to be cleaned and the plunger tightened. Thats where i'd start.

 

[97h22dxcoupe]

the vibration at high rpm's could cause fitv plunger screw to lossen , so you need to clean and tighten screw like prmeredseol said ,good tip bro,lol....

 

[Ritzbitz]

It's clean and tight and still have the problem.

 

[Ritzbitz]

I got it fix the chip in the ecu had a bug. All good now though thanx