B18C1 Turbo CRX with Hondata Stage 2B dies at idle, ideas?

toddjlarson · Post by **toddjlarson** » Sun Aug 10, 2003 8:01 pm

Hi, I am having a problem with my CRX dying at idle, especially after the car has warmed up. The idle hunts around and then finally dies. However, if I start the car when the engine is cold, it runs just fine and idles reasonably. I recently changed the igniter in my distributor which was bad, and causing the tach needle to tach out and jump all over the place. The car has a B18C1 with a T3/T4 turbo. I have 440 cc RC injectors, and I am running maximum boost at 6 psi. I don't having any stalling or hiccups at partial throttle, or WOT. Does anybody know what might be causing this? I am sure it could be a number of things. Any suggestions for fixes would be appreciated. The car is sometimes especially hard to start after it dies after being run for awhile. I can sometimes keep the car from dying at a stoplight by goosing the throttle, so the idle jumps up to around 1300 rpm or so. If there is anything else I need to let people know that might help further diagnose the problem, please post or e-mail me. Thanks.
-Todd

toddjlarson · Post by **toddjlarson** » Sun Aug 10, 2003 8:12 pm

Also, I am runnig a stock GS-R fuel pressure regulator, as my AEM one died...

raene · Post by **raene** » Mon Aug 11, 2003 3:44 pm

You could possibly be flooding it at idle. Try raising the idle waaaay up there and see if it keeps running.

toddjlarson · Post by **toddjlarson** » Mon Aug 11, 2003 4:53 pm

Ok, thanks, that is what I was kind of thinking.

Is the idle raised with the IAC screw? Or is there a better way to do it?
Thanks.

toddjlarson · Post by **toddjlarson** » Fri Aug 15, 2003 9:27 pm

Hopefully this post might help somebody else that is having similar idle problems to what I had.

Anyway, I replaced the stock GSR fuel pressure regulator with a new AEM FPR. The idle is now right at 850 rpm. It still hunts around a little, but nothing major. I am very pleased. This could probably be totally eliminated if I turned down the fuel pressure a little more.

The stock GSR regulator was at about 60 psi, which was flooding the motor at idle. I have an aftermarket STR fuel rail and RC 440 cc injectors and this was just too much fuel at idle.

I put the AEM one at left it where AEM had pre-calibrated it, which was 48 psi or so, measured at idle with the vacuum line to the FPR pinched off.

toddjlarson · Post by **toddjlarson** » Fri Aug 15, 2003 9:28 pm

Also, thanks to Raene, who suggested it was probably flooding at idle.

Hondata

B18C1 Turbo CRX with Hondata Stage 2B dies at idle, ideas?

B18C1 Turbo CRX with Hondata Stage 2B dies at idle, ideas?

I am running a stock GS-R fuel pressure regulator...

I fixed the idle!