hey guys i need help my eg started boost cuting recently and it never did it before...its my daily driver on only 4 PSI ..it cuts out at 6200 and starts to yank violently ...i never had this problem before ...
i already checked the fuel and its getiing fuel...i changed the plugs and wire set to and no luck

bought the car with the mods listed here:
b20vtec
chipped and tuned ecu
dsm injectors on indiviual ristors
ram horn turbo mainfold
turbonetics wastegate on 4psi
t4 turbo
msd dizzy and coil(SOME PEOPLE SAY ITS MY COIL) ?
....
im lost guys i really need your help it really be apperiicated and thanks again

 

Is it tuned or are you only running a basemap? And why do you need a ramhorn with such low PSI on that turbo? Get rid of that MSD.

 

yes its tuned ... and the reason for the ram horn was when i bought the car it was tuned to 10psi but it had a bad wastegate so i replaced the wastegate with a 4psi turbonetics ...i will be gettin a bigger wastegate or spring pretty soon

 

My assumption would be that this is a spark issue. Try changing plugs and see if it helps. I had a similiar issue in my miata. I believe it was an ignition issue and plugs worked as a short term fix but I sold it before I got around to swapping to coil over plugs which I believe would have helped fix my issue.

Are you monitoring your a/f ratio and egts they could help figure out if something is off in your fuel system or timing.

Hope this gives you a couple starting points.

 

It could be the ICM. External coils stress the ICM more. The part from Honda costs $250 for a B18C or B16 distributor. An ICM from any other OBD1/2 distributor will fit and work fine however...

Those injectors are a little on the small side. If I were you, I'd be investigating that pretty quick.

Isn't 6200 about where VTEC actuates? Is your oil clean and no CELs, but a working check engine light?

 

Like I said in the post ive already changed my plugs and wires...and all fuel lines

 

No cels and I just did the oil change like 3weeks ago..and sorry for da noob question icm?

 

Have you tried closing the gaps on the plugs a bit? It could help identify if its an ignition issue? Does it always break up at 6200 rpm and no lower rpms?

 

First gear runs fine and can pull all the way 8500 rpms no problen but once I hit second the problem begin at 6200rpms every gear..i will gap the plugs down later but to what specs?

 

MSD coil? Change back to OEM. I had an MSD coil and it cut out at higher RPMs, they are worthless

 

I got a feelin its my msd coil but I will try another one later on today to

 

What specs do I gap the plugs ?

 

Start at .028"

 

thanks guys i gapped the plugs and it help ...after that the car ran great but on saturday i got on it and it started smokin really bad and sounded like it was misfireing i pulled over and poped the hood oil was everywhere i let it sit and put more oil and drove home smokin didnt feel like leavin it somewhere at night to many thieves...well the next day i checked it and turned it on and saw it was leakin oil from my turbo headers

....some people told me the head lifted and blew my head gasket but i checked my radiator and its still full of anti freeze and my oil cap has no milky subtance
id also checked all my plugs and thier prefect nice and clean
id really appericate you guys help

 

Anyone????

 

If its smokin and missing I think its time for compression and leakdown tests before you take anything apart to visually diagnose

 

^agree. a blown hg will not always allow water in the oil, or oil in the water so checking those two does not rule out a blown hg.