????? so lost

[sivart33]

sr has been having some problems and the cat was glowing red one day so today i cleaned out a cat to see if that was the problem, and well nothing happened. still have a shaking issue and it does not want to rev like normal. did a little diagnosis and the only thing i could find was that the vacuum line to the bov/egr valve thing(green stripe on it) it had no vacuum to it. is it only a boost line?

then when i disconnected the other vacuum line it ran the same, and when i took the valve cover cap off nothing changed. i know its suppose to idle down but nothing happens. prity soon its going to a shop if i can't figure it out but i would imagine it is a vacuum error but the vacuum lines are put in place like they are suppose to be. no leeks it seems.

i know that was a novel, but no idea what is wrong i am going to search more on the internet. but no idea. any help would be greatly appreciated.

i could blow into the bov vacuum line and i could hear air leaking i pinched it all the way to the intake manifold and it seemed fine but i could hear air passing through it. is that normal?

it is idling around 1k rpm. i am using the stock vac line set up, with the big nipple blocked off due to i am not using a canister. i am using a blitz bov and the stock side mount is just hanging out down there. i should plug its vac line but i did not think that would matter at all, but now that i think about it, its kinda simple.

i got new plugs in it i am getting fuel for sure. i still have to disconnect the vac line from the fpr to see if the rpms go up to see if it is a bad fpr. the sr seems totally fine but the shaking and now not revving correctly. i am totaly lost on everything with this now.

<grammar messed up cause this was a person message that i copied and pasted with some additional info>

[Blown240sx]

If the cat is glowing you have a major exhaust restriction. Remove the cat and see if it fixes the issues.

[sivart33]

ya it is already cleaned out (test pipe) and still shaking violently. need some help cause i do not really want to take it to a shop.

[CSUPUEBLOTIM]

What kind of new spark plugs did you install and did you gap them? Is it throwing any codes. Almost sounds like its going lean=no good.

[sivart33]

they are gaped at .028 at the moment. forgot what plugs but they where iranum. or what ever the top of the line ones are from a regular parts store.

[sivart33]

also no screw on the ecu that i can check codes with. trust me it bugs the crap out of me cause i am sure it would have been a lot easier to figure out.

[Koshin]

What kind of new spark plugs did you install and did you gap them? Is it throwing any codes. Almost sounds like its going lean=no good.

thats what it sounds like to me as well...has the car ever ran well?? Or did this happen all of a sudden?? We need more info...

[the converted]

What is your timing set at? Did you set it at factory idle?