CR-V Glow Control & DPF Issues: Need Expert Help

Hey! I can relate to your glow plug system issues. I had similar problems with my 2010 Honda Accord i-DTEC last winter. The symptoms you're describing sound exactly like what I experienced, black smoke, hard cold starts, and that annoying constant glow plug light. In my case, the wiring harness between the glow control unit and the engine's digital diesel electronics was damaged. The insulation had worn through in spots, causing intermittent connections. They found this after diagnosing multiple fault codes. The damaged wiring was causing the glow plugs to malfunction, leading to incomplete combustion (hence the black smoke) and those DPF regen issues. It was quite a serious problem that needed immediate attention to prevent engine damage. The repair involved replacing the entire wiring harness and testing the glow control unit. Once fixed, the cold starts improved dramatically, and all those symptoms disappeared. I'd strongly suggest getting this checked out soon, as running with faulty glow plugs can cause more expensive problems down the line.

Thanks for sharing your experience! That wiring harness issue sounds exactly like what I'm dealing with. I got mine looked at and they also found damaged wiring that was messing with the glow plug system. Did you remember roughly how much the repair ended up costing you? Also, has everything been running smoothly since the fix? My car's booked in for next week and I'm trying to get an idea of what I'm in for.

Hey again! Glad I could help identify the issue! Yeah, I remember the costs clearly, it was 155€ to fix the wiring harness between the glow control unit and digital diesel electronics. Trust me, it was worth every penny! Since getting it fixed, my Accord has been running like a dream. No more black smoke, starts up perfectly even on cold mornings, and that annoying glow plug light finally stopped staying on. The DPF regeneration is working normally now too. It's honestly like having a different car! The mechanic caught it just in time before it could cause any serious engine damage. Really happy I didn't put off getting it checked. You've definitely made the right call booking yours in, your CR-V should be back to its old self once they sort out that wiring. Let me know how it goes next week! Just a heads up, make sure they test everything thoroughly after the repair. My mechanic did a full system check to ensure there weren't any lingering issues, which gave me good peace of mind.

Thanks so much for all the details! Just got back from the mechanic today and you were spot on. The wiring was definitely the culprit, and the repair came to about 180 for parts and labor. A bit more than what you paid, but still reasonable considering the alternative of major engine problems! The difference is like night and day, no more black smoke, starts up perfectly, and that annoying glow plug light is finally off. They did the full system check like you suggested, and everything's working perfectly. The mechanic also cleaned up the DPF while they were at it, which was a nice bonus. Really glad I asked about this here and got your advice. Would've probably kept putting it off otherwise! Thanks again for sharing your experience, it really helped me understand what I was dealing with. Time to enjoy my smoothly running CR-V again!