Egr diagnostic issues
#41
Pulled fan rely, still grounded.
didnt have a rely for the secondary fan. im guessing thats a z28 thing.
disconnected purge wire harness, still grounded.
yes key is always on,
im testing wire D, for ground.
so??
thinking about testing the fuel pressure tomorrow.
anymore ideas?
didnt have a rely for the secondary fan. im guessing thats a z28 thing.
disconnected purge wire harness, still grounded.
yes key is always on,
im testing wire D, for ground.
so??
thinking about testing the fuel pressure tomorrow.
anymore ideas?
#43
Well I fixed the EGR issue. It ended up being the upper intake manifold. I replaced that and it hasn't thrown the code since. But that didn't stop the sputtering and backfiring in the intake and horrid fuel mileage. I took the car to GM today for a diagnosis and It turns out that I have a temp sensor reading -38 degrees, causing the car to run rich. Nice eh? Well I have a new sensor ordered and I'll update when I get it installed!
found this on a diffrent thread.
i think i have the same problem with the upper intake.
found this on a diffrent thread.
i think i have the same problem with the upper intake.