What should the MAF readings be on a PES T-28
09-03-2003, 08:30 AM
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What should the MAF readings be on a PES T-28
I am nDBW and have a 1.5 bar chip - which used to get 22psi consistently.
Now I am getting about 19psi which drops to 17psi or so in first and second. Third-fifth see 19-20psi - but then it suddenly jumps up to 22-23 around 5k or so - somewhat random.
I checked all the hoses - they seem fine. I am suspicious of the the n75 valve. On nDBW - what block logs requested boost? is there one?
TIA -
I datalogged a 2-4 gear pull on the turnpike:
Time RPM Load Inj MAF O2
88.71 840 1.05 1.98 2.84 0.74
89.39 1080 1.7 3.39 5.83 0.215
90.11 1960 1.35 2.5 8.68 0.82
90.79 2680 1.1 1.86 9.17 0.855
91.46 2840 0.6 1.09 5.83 0.1
92.12 2960 1.3 2.18 12.5 0.045
92.77 2840 1.2 2.11 10.97 0.16
93.43 2720 0.9 1.54 7.98 0.76
94.14 2680 1.4 3.07 11.53 0.105
94.8 4560 5.05 10.43 73.33 0.83
95.48 5480 8.05 16.32 139.44 0.895
96.17 6200 9 16.32 178.33 0.9
96.88 6760 8.6 16.32 185.56 0.865
97.6 5840 6.4 14.59 117.98 0.72
98.28 4760 0.9 1.34 13.61 0.915
98.96 3640 10.3 16.32 119.72 0.92
99.63 5280 10 16.32 168.54 0.93
100.3 5720 9.85 16.32 178.82 0.87
100.97 5600 9.95 16.32 177.71 0.87
101.65 6000 9.5 16.32 180.83 0.87
102.36 5920 1 16.32 17.71 0.865
103.02 4360 10.2 16.32 141.81 0.94
103.72 4680 10.55 16.32 157.29 0.905
104.37 4920 10.55 16.32 165.69 0.895
105.05 5160 10.35 16.32 170.14 0.885
105.72 5400 10.15 16.32 175.28 0.875
106.38 5640 10.05 16.32 179.44 0.865
107.08 5840 9.9 16.32 184.31 0.86
107.79 6040 9.7 16.32 186.11 0.855
Now I am getting about 19psi which drops to 17psi or so in first and second. Third-fifth see 19-20psi - but then it suddenly jumps up to 22-23 around 5k or so - somewhat random.
I checked all the hoses - they seem fine. I am suspicious of the the n75 valve. On nDBW - what block logs requested boost? is there one?
TIA -
I datalogged a 2-4 gear pull on the turnpike:
Time RPM Load Inj MAF O2
88.71 840 1.05 1.98 2.84 0.74
89.39 1080 1.7 3.39 5.83 0.215
90.11 1960 1.35 2.5 8.68 0.82
90.79 2680 1.1 1.86 9.17 0.855
91.46 2840 0.6 1.09 5.83 0.1
92.12 2960 1.3 2.18 12.5 0.045
92.77 2840 1.2 2.11 10.97 0.16
93.43 2720 0.9 1.54 7.98 0.76
94.14 2680 1.4 3.07 11.53 0.105
94.8 4560 5.05 10.43 73.33 0.83
95.48 5480 8.05 16.32 139.44 0.895
96.17 6200 9 16.32 178.33 0.9
96.88 6760 8.6 16.32 185.56 0.865
97.6 5840 6.4 14.59 117.98 0.72
98.28 4760 0.9 1.34 13.61 0.915
98.96 3640 10.3 16.32 119.72 0.92
99.63 5280 10 16.32 168.54 0.93
100.3 5720 9.85 16.32 178.82 0.87
100.97 5600 9.95 16.32 177.71 0.87
101.65 6000 9.5 16.32 180.83 0.87
102.36 5920 1 16.32 17.71 0.865
103.02 4360 10.2 16.32 141.81 0.94
103.72 4680 10.55 16.32 157.29 0.905
104.37 4920 10.55 16.32 165.69 0.895
105.05 5160 10.35 16.32 170.14 0.885
105.72 5400 10.15 16.32 175.28 0.875
106.38 5640 10.05 16.32 179.44 0.865
107.08 5840 9.9 16.32 184.31 0.86
107.79 6040 9.7 16.32 186.11 0.855
