zzp catted downpipe problems
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New Member
Joined: 10-26-10
Posts: 19
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From: crystal lake IL
zzp catted downpipe problems
hey....i have 2010 lnf balt..... i have gm stage1 with hahn intake. never had a single problem...i just put on a zzp catted downpipe 2 days ago. .. last nite it threw itself into a safe mode and i couldent boost anymore than 2 psi. i was driving around without beating on it for about 2 hours when this happened. and i threw a scanner on it..it came up as a p0101 mass airflow volume range/performance meaning that it went out of its range ..so in otherwords its flowing too much. it also had a p013e which is a 02 sensor delayed response .. i cleared both codes and i have all my power back. hoping it will eventully learn and not throw these codes... does annyone with gm stage1 have these problems after doing a downpipe??
Former Vendor
Joined: 06-03-08
Posts: 4,169
Likes: 8
From: Grand Rapids, MI
The 101 code is most likely caused by the Hahn intake skewing the MAF reading. A downpipe will not cause a MAF code. The o2 code could be a result of the downpipe having the separated o2 chamber. It seems that our catted downpipes throw codes more often than our catless DPs, probably due to an over-compensation in the partially isolated o2 chamber. If you are in the market for an ECM, we delete the secondary 02 codes to avoid any related codes.
Senior Member
Joined: 08-05-08
Posts: 1,460
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From: Iowa
I've been running the Spun Metal Cat ZZP DP for +/- 20K miles and just about 8K miles ago it says my rear O2 is bad. I'm not GM Staged though, just tuned with Intake and the DP.
In my case it could actually be bad though as I just passed 70K miles.
But, I never had any problems for quite a few thousand miles. I also had MAF problems a couple of times and BOTH times it was the plug wiring. Eventually just got a new plug, cut the wiring back a bit, soldered in some new wire and heat sealed it up real nice.
In my case it could actually be bad though as I just passed 70K miles.
But, I never had any problems for quite a few thousand miles. I also had MAF problems a couple of times and BOTH times it was the plug wiring. Eventually just got a new plug, cut the wiring back a bit, soldered in some new wire and heat sealed it up real nice.
hey....i have 2010 lnf balt..... i have gm stage1 with hahn intake. never had a single problem...i just put on a zzp catted downpipe 2 days ago. .. last nite it threw itself into a safe mode and i couldent boost anymore than 2 psi. i was driving around without beating on it for about 2 hours when this happened. and i threw a scanner on it..it came up as a p0101 mass airflow volume range/performance meaning that it went out of its range ..so in otherwords its flowing too much. it also had a p013e which is a 02 sensor delayed response .. i cleared both codes and i have all my power back. hoping it will eventully learn and not throw these codes... does annyone with gm stage1 have these problems after doing a downpipe??
Senior Member
Joined: 07-23-10
Posts: 3,451
Likes: 0
From: Carlsbad, CA
I've been running the Spun Metal Cat ZZP DP for +/- 20K miles and just about 8K miles ago it says my rear O2 is bad. I'm not GM Staged though, just tuned with Intake and the DP.
In my case it could actually be bad though as I just passed 70K miles.
But, I never had any problems for quite a few thousand miles. I also had MAF problems a couple of times and BOTH times it was the plug wiring. Eventually just got a new plug, cut the wiring back a bit, soldered in some new wire and heat sealed it up real nice.
In my case it could actually be bad though as I just passed 70K miles.
But, I never had any problems for quite a few thousand miles. I also had MAF problems a couple of times and BOTH times it was the plug wiring. Eventually just got a new plug, cut the wiring back a bit, soldered in some new wire and heat sealed it up real nice.
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