260z w/L28et studders when driven

[240zdreamin]

Good evening Team,

I've got a problem that I'm yet to identify. Vehicle specifics include:

L28et (P90 head)

Megasquirt 2.0

Original distributor with DIY trigger wheel

T5 transmission

 

The engine performs well when stationary. Can rev it to 4000 rpm (probably would go more but don't want to push it just yet) without any problems however, when I drive it and get to approx. 2000 rpm, the car starts to studder, bunny hop whatever you call it. I typically just change gear or slow down. I've done some research and I thought that the fuel pressure may've been the problem so I went from 37 to 45lbs based on my injectors being 370cc (online calculator). That didn't work. I wonder if my injectors seals could be the problem? The injectors didn't seem to fit tight into the intake manifold. To check, I placed some pieces of paper adjacent the injectors to see if any air was blowing by but nothing. 

I believe its fuel related but am not sure.

I'm a little puzzled and frustrated as I haven't driven my car over 2000 rpm yet.

Any help is very much appreciated.

Cheers,

Aaron

 

 

[HuD 91gt]

I had major issues with this and my MS2. Acceleration enrichment needed some

much needed attention.

[240zdreamin]

Thanks for the response.

 

I figured that it had to be MS2 related.

 

Did you put it in a dyno or find someone to adjust while you drove?

[HuD 91gt]

I had a local guy pretty familiar with them fiddle with it. My car was very sensitive it seemed. Make sure your system isn’t picking up any electrical noise. It can cause chaos.