Few Issues I Need Help With.

[R32/Ta22]

hi guys. there is a few issues with my r32 gtst. rb20det

first is today I went to go for a drive and it took a while to start and didn't want to idle right. couldn't get it over 2500 rpm without coughing and spluttering and the light cat/exhaust looking warning light was flashing? so I did a u turn and drove home. then I went to start it again to put it in the garage to have a look at it and it was totally fine... weird.

second could maybe be a cause of the issue. when I bought the car it came with a z32 air flow meter which has been put after the turbo when I believe its meant to be before the turbo. there hasn't been a problem with it in that spot but I don't know if it is causing lag problems or the reason for it to be placed there. my guess is it makes for a louder dose but I don't know.

also my intercooler piping travels under the intercooler then in then out the other side. I was wondering if I get an intercooler with the intake and out take on the same side I wont need the extra piping that goes under and around into the intercooler. the car is very laggy it gets onto boost at 4500rpm.

im only just new to skylines/imports so any expert help would go down a treat.

[Josh080691]

Firstly the z32 there isn't a problem. Neither is the return type cooler Start off with this list

1. Check coil packs

2. Check plugs etc

3. Check for boost leaks

4. Check afm could just be rooted

If he car doesn't boost until 4500rpm u got big problems which could be a bad bad boost leak or a rooted turbo