As stated above , I think I hurt my engine AGAIN !!!! , I was preparing to remove the fuel injectors ( all six of them , 4 * 850 and 2 * 1300 which are going to 86 % duty cycle!! @ 8 psi boost ) and send them for cleaning , before I did I decided to play around with the injector harness a bit and see what I came up with . When I switched the primary injectors plugs , ie fron rotor to rear and vice versa , the car would'nt start , when I eventuslly got it going it idled very roughly and wouldnt rev out cleanly and easily like before , I also checked the additional ones (which are wired in parallel with the secondarys ) and found nothing , I then normalized everything and went for a road test .
After a short boost run , the idle dropped from 1500 then it stalled , and refused to restart , I eventually kick started it and drove home , power and response seemed fine , when I got home it stalled again, pulled the four plugs and found them full of carbon , changed them out and it still wouldnt start , hooked up the laptop reduced the fuel and still no start , I also pulled each injector and checked them and found them to be ok , I also pulled the injector harness and found a few problems , one of the secondarys was shorting and the additional injectors weren't working at all , after repairing the harness I checked everything and got all six injectors to working as they were supposed to .
I kicked it again , eventually got it to idle and drove it again it was soo rich with all six injectors that I couldn't boost so I disconnected the additionals and was able to boost but was still very rich , even at idle it was still too rich ( I could not go below 2.5ms at idle without it stalling ) . I also noticed the vacuum had dropped from 10 " Hg to 5 " Hg indicating some difference internally , I already pulled the engine out to see what's up .

 

What do you mean by "injectors plugs " ? Are you are talking about switching the electrical connectors that plug into the injectors, and you did this to the primary injectors?

 

Yeah thats thats whati am talking the plastic electrical connectors that attach the injector to the harness ,I should be able to switch them around with no problems.

 

If your engine management is sequential, this would have an effect on how your car idles.

 

might sound kind of dumb, but did you do a compression test before pulling the engine?

 

Yeah I did one using a mechanical gauge ( took out the check valve) and both rotors read 80psi three times !!.

 

If your engine is running shitty it's going to lose vaccum at idle. On my 13B-RE it's right at 15in hg untill it gets warm an I start driving then it's about 18-19 in hg at stop signs.

 

Mate !

You need a decent street port

I get about 11" to 13" maximum at idle (1150rpm)

Your engine sounds strong for a stocker

 

yes, it cracks me up guys who claim to have 'big street port' yet they get readings over 110psi on a compression check, who's pulling who?

 

haha, my stock port moves my FB just fine! for now....