Excessive smoke, Help needed
V50 2.0D 136
Long story short, I had fault logged that pointed to Fuel pressure regulator, and after trial and error on the ordering side, I got the correct part delivered today and fitted. The error code vanished after fitting, but the smoke persisted. New error popped up.. Air Intake Temp sensor appeared to be the culprit, so a 80 min round trip to Euro car parts later and new part fitted, but smoke still persists and so does error code. Another trip to Euro car parts and MAF collected, but issue still persists. Old AIT sensor was smothered in oil so it would have needed removing, and throttle body was much dirtier than expected, but as I wasn't planning to remove this part I didn't have any cleaning products available, so this is a job for Monday. Car is smoking (black/greyish) badly and economy is awful (300 miles to a tank if I dare to drive it). Any suggestions on where to look for problems? Today has been expensive and stressful, and I'm no closer to finding the issue. |
id consider EGR valve?
im not that familiar with Volvos, but ive had a VW and a X Type which had EGR faults and no codes stored. does it seem to drive ok |
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EGR is on my to do list. |
My egr caused mine to smoke like hell, I fitted a blanking plate and it fixed it strait away. The plate is about £3 on eBay and can at the least act as easy diagnostics. Do you have a dpf?
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DPF was gutted last week. |
Hi
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Has the software been altered to delete the DPF sensors? Could it be trying to regenerate? Thinking it has a blocked DPF. Iain |
Try a blanking blanking plate, you can order them off EBay for a few quid. I was having starting issues, smoke under acceleration and pool fuel economy. I fitted the plate and it's all stopped. It's also worth cleaning your throttle body and chamfering the butterfly flap so it doesn't jam.
TT |
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Sadly, that isn't the issue. |
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How did you chamfer the butterfly flap? I'm already making plans to clean this out properly as it needs it. Also, can anyone confirm that the Throttle body is held on with 3 T30 torx bolts? Mine had one, and 2 10mm bolts, which I found odd and tricky to remove. |
Well it will put a fault on there for EGR circuit A low but I wouldnt worry about it as that fault wont put on a ECL. It may put the engine warning light on but seeing as you have had a dpf delete it should be okay!
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