Mar 21, 2016 · #2 - 17956 - Boost Pressure Regulation Valve (N75), Open Circuit #3 - 16620 - Manifold Pressure / Boost Sensor (G31), Implausible Signal I'm thinking for $100 I'll just try the N75. Any other suggestions? Aug 4, 2008 · Check the oil dipstick tube for cracks. Pull up on the dipstick. If the tube comes with it, replace the tube. Additionally, there are about 16,000 feet of 1/4" vacuum lines that become dry and are only held together by the exterior webbing. Hi guys Audi a4 1.9tdi avf Been having issues where the car losses boost/power.had the maf,map and n75 valve replaced with the originals. following faults always showed up 17932 (p1524)..fuel pump relay 18027 (p1619)..glow plug relay 17957 (p1549) boost pressure (n75) 17996 (p1588) engine mount solenoid Feb 7, 2007 · I just bypassed my N249 by running a hose from the original T directly to the DV's. I guess the valve was shot because I've definitely noticed an increase in how smooth the car drives while in part throttle around town. 2000 B5 S4 Stg II+. 04-09-2009 02:42 PM #37. csre9. Jun 14, 2003 · A4 (B5 Platform) Discussion - Hey, what do you guys know about installing a 2.7t N75 valve in our 1.8t? - I met a pretty sharp GTI guy yesterday who had a N75 valve from a 2.7t installed on his 1.8t, and he said he was sure he felt more power due to it. Feb 20, 2010 · Custom tip vent pod with Podi. 02 Allroad 6 spd, Kraftwerk Turbo TM6, 750cc, 3" MAF, piggy, FMIC, CM stg 5 (hate). 30 psi at 3600 rpm. Needs stronger rods (coming). 05 Golf TDI. Looking for 2001 A4 1.8T quattro manual with blown motor. www.regulatorfix.com. www.kraftwerkturbo.com. 01-27-2021 10:31 AM #2. Jul 15, 2013 · AC refrigerant metering device's. The orifice tube is just before the evaporator forward of the mechanical block connection in the high side line "smaller line", loosen the compression block bolts after you evacuate the system and look in the line for a plastic centered tab "orifice tube" that can be pulled out with a pair of needle nosed pliers. Aug 4, 2011 · Share. A4 (B5 Platform) Discussion - Can't find boost leak - I recently bought a 2001 1.8t A4 and it's got almost no boost. Maybe 2-3psi at best. I've checked the DV, it's good. I've bypassed the DV solenoid, so it's not that. I've disconnected the wastegate solenoid (both electrically, and the vacuum line going to the Aug 25, 2008 · so im thinking i have a faulty n75 valve but i dont know for sure and def dont wanna blow money and not have that be the problem. im just having horribly consitancy with my boost. could be spiking 16 one day then 7 the next. no CEL either. how should i go abouts finding the problem. thanks guys May 14, 2008 · Re: How to tell when your Diverter Valve fails. Originally Posted by ecbo0m. You can also test the DV manually by taking it out first. Push the piston down with a socket while covering the vacuum nib with your finger. Remove the socket, and the piston should stay in the up position until you remove your finger. Jn4keYI.