MK5 Golf GTI

All Things Mk5 => How to Guides / Troubleshooting => Topic started by: briank213 on September 30, 2021, 01:48:04 pm

Title: Failing injectors!!!!
Post by: briank213 on September 30, 2021, 01:48:04 pm

I have a question I got a call from the mechanic saying that all 4 injectors failed on my car is that even possible?Let me know if this ever happened to your car.

Thanks have a great day everyone

Title: Re: Failing injectors!!!!
Post by: LC5F on September 30, 2021, 07:13:24 pm

All 4 does sound odd  - have they checked the wiring?
Sounds more likely to be an electrical issue stopping the injectors from firing

Title: Re: Failing injectors!!!!
Post by: GVK on September 30, 2021, 10:01:12 pm

Utter BS!!  :signLOL:

Title: Re: Failing injectors!!!!
Post by: briank213 on October 01, 2021, 03:30:32 am

Quote from: LC5F on September 30, 2021, 07:13:24 pm

All 4 does sound odd  - have they checked the wiring?
Sounds more likely to be an electrical issue stopping the injectors from firing

No they have not they took the injectors out of the car and bench tested them that's what the mechanic told me cause he quoted me
$900 for 4 new injectors.

Title: Re: Failing injectors!!!!
Post by: briank213 on October 01, 2021, 03:34:45 am

Quote from: GVK on September 30, 2021, 10:01:12 pm

Utter BS!!  :signLOL:

That's exactly what I thought cause I never heard of all 4 failing at the time. I am going to go to the shop tomorrow and he must show me how did these injectors failed. His reason for all of them failing was because I had Apr stage 1 tune on my car.

Title: Re: Failing injectors!!!!
Post by: pudding on October 01, 2021, 11:29:07 am

They very rarely fail completely, and NEVER all 4 at the same time.  They just get lazy/blocked at lower duty cycles (i.e. idle and part throttle) but clear up again with some revs and increased fuel pressure.

Sounds like he can't be bothered to properly diagnose the issue and wants to just fire the parts cannon at it, at your expense.