Make Model Spec C4. 1.4 16V COOLC4. 1.4 16V LX, 1.6 HDI LXC4. 1.4 16V SX;C4. 1.6 16V BASEC4. 1.6 16V CATCHETC4. 1.6 16V EXCLUSIVEC4. 1.6 16V SXC4. 1.6 16V SX BIOFLEXC4. 1.6 16V SX, FLEXC4. 1.6 16V THP 140, 150.C4. 1.6 16V VTRC4. 1.6 16V VTR+C4. 1.6 16V VTXC4. 1.6 HDIC4. 1.6 HDI (110 HP) SXC4. 1.6 HDI (90HP) SXC4. 1.6 HDI 110 AIRDREAMC4. 1.6 HDI 110 CATCHETC4. 1.6 HDI COOL; 1.6 16V COOLC4. 1.6 HDI EXCLUSIVEC4. 1.6 HDI EXCLUSIVE, AIRDREAMC4. 1.6 HDI VTRC4. 1.6 HDI VTXC4. 1.6 HDI; 2.0HDI VTR+C4. 2.0 16V VTR+C4. 2.0 16V EXCLUSIVEC4. 2.0 BASEC4. 2.0 HDI. EXCLUSIVEC4. 2.0 VTR, 2.0 EXCLUSIVE What should my pressure be?