EGR blanked Today!

[ChrisGTL]

Right dudes, ive done some logging....would anyone care to make some comment...on first look it looks like i get less boost than Chris.....which doesn't sounds good

Check it out and see what you think!

4th gear from about 1500rpm....no errors logged and with EGR blanked....

Block 003

Time Engine MAF MAF EGR
Spec Speed Specfied Actual Duty Cycle

0.01 1449 850 901.6 4.8
0.8 1533 850 989.8 4.8
1.62 1659 850 965.3 4.8
2.44 1764 850 940.8 4.8
3.22 1869 850 989.8 4.8
4.04 1995 850 1097.6 4.8
4.84 2121 850 1122.1 4.8
5.64 2268 850 1200.5 4.8
6.42 2415 850 1244.6 4.8
7.22 2562 850 1249.5 4.8
8.04 2730 850 1249.5 4.8
8.85 2856 850 1239.7 4.8
9.66 3003 850 1234.8 4.8
10.49 3150 850 1215.2 4.8
11.3 3276 850 1210.3 4.8
12.1 3402 850 1200.5 4.8
12.9 3507 850 1195.6 4.8
13.7 3612 850 1185.8 4.8
14.5 3717 850 1176 4.8
15.3 3822 850 1156.4 4.8
16.1 3906 850 1156.4 4.8
16.9 4011 850 1122.1 4.8
17.7 4095 850 1117.2 4.8
18.5 4053 850 1097.6 4.8
19.3 3990 850 445.9 4.8
20.1 3822 850 450.8 4.8

Block 011

Time Engine Spec Intake Actual Intake D.Cycle
Stamp Speed Pressure Pressure Map
0.4 1491 1884 1944 42.2
1.22 1596 2004 2124 49.4
2.02 1701 2136 2100 48.2
2.82 1806 2244 2064 49.4
3.64 1932 2340 2160 49.8
4.44 2079 2388 2352 54.6
5.24 2205 2436 2460 58.2
6.02 2331 2460 2532 61.4
6.82 2478 2472 2592 64.1
7.62 2646 2484 2592 66.5
8.44 2793 2472 2556 68.9
9.26 2940 2484 2532 70.9
10.06 3087 2484 2520 72.5
10.89 3213 2484 2508 74.1
11.7 3339 2484 2508 76.5
12.5 3444 2484 2520 78.1
13.3 3549 2472 2544 80.9
14.1 3675 2460 2580 84.1
14.9 3780 2460 2604 86.9
15.7 3864 2448 2616 90
16.5 3969 2436 2604 92
17.3 4032 2424 2592 94.4
18.1 4116 2400 2556 94.4
18.9 4053 1116 1548 49.4
19.7 3906 1104 1212 48.6
20.5 3738 1080 1212 48.2

I also did a second run, so please take a look...

Block 003

Time Engine MAF MAF EGR
Spec Speed Specfied Actual Duty Cycle
0.4 2163 550 700.7 84.5
1.98 2352 850 1225 4.8
2.78 2541 850 1239.7 4.8
3.6 2730 850 1249.5 4.8
4.4 2940 850 1239.7 4.8
5.21 3150 850 1205.4 4.8
6.04 3360 850 1185.8 4.8
6.84 3549 850 1141.7 4.8
7.64 3738 850 1127 4.8
8.45 3885 850 1097.6 4.8
9.26 3990 850 1087.8 4.8
10.06 4095 850 1073.1 4.8
10.86 4200 850 1053.5 4.8
11.66 4263 850 1033.9 4.8
12.44 4347 850 1004.5 4.8
13.26 4410 850 989.8 4.8
14.06 4473 850 960.4 4.8
14.86 4536 850 955.5 4.8
15.64 4578 850 935.9 4.8
16.47 4641 850 906.5 4.8
17.28 4683 850 896.7 4.8
18.08 4704 850 896.7 4.8
18.88 4767 850 891.8 4.8
19.68 4704 850 578.2 4.8
20.5 3171 325 573.3 4.8


Block 011


Time Engine Spec Intake Actual Intake D.Cycle
Stamp Speed Pressure Pressure Map
0.01 2142 1584 1620 45
1.59 2268 2448 2256 62.6
2.38 2436 2472 2520 63.4
3.2 2625 2472 2532 65.3
4.01 2835 2472 2544 68.9
4.81 3045 2472 2508 71.3
5.62 3255 2472 2472 72.5
6.45 3465 2472 2448 73.7
7.24 3654 2460 2460 75.3
8.05 3801 2448 2472 77.7
8.86 3948 2436 2472 79.7
9.66 4053 2412 2460 80.9
10.46 4137 2388 2424 81.3
11.26 4242 2364 2388 82.5
12.06 4305 2340 2376 83.3
12.84 4389 2328 2340 82.5
13.66 4452 2304 2304 82.1
14.46 4515 2280 2268 80.9
15.26 4578 2280 2232 79.3
16.04 4599 2280 2196 76.5
16.87 4641 2280 2148 72.9
17.68 4704 2280 2136 71.7
18.48 4725 2280 2136 69.7
19.28 4767 2268 2148 68.9
20.08 4011 1104 1704 49.4

There ya go!!!!

What does my MAF look like? Knacered or alright?

MAF looks fine to me, your boost doesnt seem as high as mine but I supose that will depend on what MAP you have had done.

Which map have you got? Do you have a rolling road plot of it you could upload?

 

[Phil_beeza]

slightly Off topic but fairly on topic, i stuck a thing in the egr vacuum pipe about a year ago, didnt notice any difference in performance, will removing one end of this pipe from its seating have the same effect? (having it as a 'flying lead') just in case the "thing" i stuck in the pipe isnt actually blocking it

obv i know having cables waving about in the engine isn't the best idea in the long term

 

[Muttley]

You wouldn't expect to see any change in performance from blocking the EGR. The reason for doing it is to stop the buildup of sooty sludge in the inlet manifold and on the EGR valve itself, eventually choking the airflow and sticking the EGR valve open when you don't want it.

I do occasionally notice a bit of extra urge at part throttle as the ECU injects a bit more fuel to compensate for the (now-missing) power drop due to the opening of the EGR, but it's not very strong. The most noticable performance change should be a small improvement in fuel consumption, but only a few mpg at most.

 

[Funkyfin2000]

MAF looks fine to me, your boost doesnt seem as high as mine but I supose that will depend on what MAP you have had done.

Which map have you got? Do you have a rolling road plot of it you could upload?

Ive got a CCC map i think it is...... when i get a new clutch then i will probably get it tweaked to produce some more boost.

No RR plot sadly

any other comments peeps?