Hi Guys,

I'm hoping someone will be able to point me in the right direction here. Around 2 months ago i had the ignition sensor fail, and the car was undrivable. It was running rough from the moment the car started.

I ordered a new ignition sensor, it arrived a couple of weeks later, i installed it, and the car was fine. A few weeks later i started finding that the car was stuttering when the car hit around 15 - 16 psi of boost in 3rd, 4th, and 5th gear. I replaced the spark plugs (another set of bkr7e's), and this problem dissapeared for another few weeks until the last few days...

The only other symptom i've been having recently is that the car occasionally has trouble starting again when it's been run for only about 5 minutes to the shops. The starter ticks over fine, but the engine doesn't for up to 10 seconds at it's worst. I've checked the battery, and it's been at 12.67V before starting and gets up to over 14V when running, and drops back to ~12.8V when the car is switched off again... Apart from that i can still hear the fuel pump priming up when i first open the drivers door...

Checking with vag com, the engine isn't producing any fault codes.

I logged the following data tonight. The knock values go positive when the stuttering occurs at high boost. I've only got the shareware version of vag com 409.1. If there are other blocks i should be logging that require the full version, then i might buy a license this week....

Is the new ignition module likely to be at fault?

Dan

Wednesday 17 February 2010 20:21:32
06A 906 018 CH 1.8L R4/5VT MOTR HS D02

Group A: '014 Group B: '015 Group C: Not Running
RPM Time Knock Reg. Knock Reg. RPM Time Knock Reg. Knock Reg.
TIME TIME TIME
Marker STAMP /min ms ° ° STAMP /min ms ° ° STAMP
150.34 1360 1.35 0 0 150.72 1320 1.25 0 0
151.09 1560 1.05 0 0 151.47 2200 0.65 0 0
151.86 2040 1 0 0 152.24 2000 1.1 0 0
152.63 1960 1.8 0 0 153.01 2040 2.95 0 0
153.41 2040 2.5 0 0 153.78 2080 2.55 0 0
154.18 2160 3.05 0 0 154.56 2240 3.4 0 0
154.95 2280 2.6 0 0 155.33 2280 1.55 0 0
155.7 2280 1.45 0 0 156.08 2280 1.35 0 0
156.45 2200 1.3 0 0 156.83 2160 0.9 0 0
157.22 2040 0.8 0 0 157.6 2000 0.85 0 0
158 1920 0.95 0 0 158.37 1840 1.05 0 0
158.75 1760 1.05 0 0 159.15 1800 1.05 0 0
159.54 1760 1.05 0 0 159.92 1800 1.2 0 0
160.29 1800 1.45 0 0 160.69 1840 2.8 0 0
161.12 1960 4.2 0 0 161.49 2080 4.85 0 0
161.87 2240 5.55 0 0 162.26 2480 6.75 0 0
162.64 2680 7.15 0 2.2 163.02 2920 7.1 2.2 0
163.41 3160 7.1 0 1.5 163.79 3440 7.3 2.2 0
164.18 3440 4.55 0 1.5 164.58 3120 1.25 0 0
164.98 2560 1.3 0 0 165.36 2440 3.95 0 0
165.73 2520 5.4 0 0 166.11 2600 6.7 0 0
166.5 2720 8.15 2.2 2.2 166.88 2840 10.4 0 2.2
167.26 3000 10.45 2.2 2.2 167.63 3200 9.7 2.2 2.2
168.02 3280 9.35 2.2 2.2 168.38 3360 9.35 6.7 2.2
168.77 3600 9.2 3.7 3.7 169.15 3760 9.05 6 4.5
169.54 3560 2.7 3.7 5.2 169.9 3080 1.1 0 0
170.29 2520 0.95 0 0 170.67 2920 0.8 0 0
171.04 2880 0.9 0 0 171.44 2840 0.75 0 0
171.82 2800 0.75 0 0 172.21 2800 0.7 0 0
172.58 2760 0.7 0 0 172.96 2720 0.7 0 0
173.38 2640 0.75 0 0 173.74 2560 0.75 0 0