CEL code 45 + other issues >.<

[Paradox]

Hey sub lovers, got a problem....

Car was running mint, boosting 10-12psi primary, 15-16 secondary. Re-installed boost gauge (had to remove it when doing manual conversion, as was running through the clutch mount on the fire-wall) and since then the car (95 bg5a gt wagon) hasn\'t been idling right. Unhooked gauge, still done it, re-fitted the gauge with new line and tee, and problem still there (tee\'d into line 11) Sometimes it\'s good, sometimes it dies, or goes to die, when clutching it, or slowing down to a stop. Thought it was AFM, so switched it, and the problem persists + starting boosting at 7psi primary and secondary. Switched AFM back, and both problems still there!! Occasionally it will boost normal, but more often only running the 7psi. Checked CEL and came up with 45, I cleared the ecu and the code has gone, but still a problem (need to take for proper run again admittedly) Any ideas???

Also, where is the pressure exchange solenoid, and the pressure sensor?

[Marky]

Pressure sensor thingy is on the firewall (I think its on drivers side on BG) - has hoses 22 and 23 (??) on either side of it

Exchange solenoid I imagine is something relating to BBoD (black box of dooooooom) where all the trickery is on drivers strut tower.

[Paradox]

Cheers Marky, one of the only people to reply to my posts lol. I\'m going to run some upper engine cleaner this week. Hopefully sorts the problems.

[Durty-Sanchez]

That sucker on your firewall is the differential pressure sensor - it basically helps equalise pressures from both turbos before it allows them to combine. That sounds fine to me, but as marky says its your pressure sensor that lives in the bbod (I forget which line it goes to). 7psi sounds like wastegate pressure so either your restrictor pill has gone or something is going in to failsafe mode. Given that you were tinkering with vac lines and not the sensor I\'m inclined to say go make sure they\'re all ok

[Paradox]

Cheers for the reply Just ran some upper engine cleaner through. First test drive showed proper boost. Will take for proper drive tonight and report back. Only vacuum line i\'ve touched has been line 11 for the boost gauge. Wiped the cel code, hasn\'t come back since.