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Old 03-06-2009, 11:56 AM   #1
DNut
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Member#: 151739
Join Date: Jun 2007
Chapter/Region: NESIC
Location: Stoughton, MA
Default Delta cams and emissions testing in MA

Anyone here running either the Delta 1000 or 2000 cams in their EJ25?

I’m debating the 1000 vs 2000 grind for my DD, and I’m curious to see if anyone had any problems passing emissions with either of these due to a CEL being thrown from the ECU thinking that the engine is misfiring.

I was thinking that the 1000 would be the way to go because of a lesser chance of a CEL occurring, but if the CEL isn’t too frequent with the 2000s then I might look into getting those instead.

(Yes, I know that there are a ton of threads about this in the NA section, but I’m interested in seeing how guys local to me have gotten around this problem come time for emissions)
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Old 03-06-2009, 12:16 PM   #2
SubyMass
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Member#: 136493
Join Date: Jan 2007
Chapter/Region: NESIC
Location: Northborough, MA
Vehicle:
2015 WRX
GBP

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No personal experience here but here are my thoughts.

MA inspection should only be limited to no CEL's being present and visual inspections. With that said, just make sure you dont have a CEL.
I assume the CEL is thrown due to rough idle. Could you temporarily bump up the target idle in order to do this? Once you have your sticker, reset to wherever you want.
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Old 03-06-2009, 12:30 PM   #3
DNut
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Originally Posted by SubyMass View Post
No personal experience here but here are my thoughts.

MA inspection should only be limited to no CEL's being present and visual inspections. With that said, just make sure you dont have a CEL.
I assume the CEL is thrown due to rough idle. Could you temporarily bump up the target idle in order to do this? Once you have your sticker, reset to wherever you want.

Yeah, I can bump up the idle, but it's only a temp fix that will go away if the ECU is every reset, such as if I need to reset a code.

I'm going to look more into it and decide from there. I think that I may go with the 2000s after talking to a couple of guys on rs25 in a similar thread I started on that forum.
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Old 03-06-2009, 02:16 PM   #4
bigbrakeparts
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I have 282 Crower Stage 3 in a 2005 WRX built head on a v8 spec c block.

The idle is like a V8, but no CEL.

Just make sure all your readyness tests work and no CEL, you will be all set.

Where are you located?

-G
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Old 03-06-2009, 02:19 PM   #5
DNut
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Quote:
Originally Posted by bigbrakeparts View Post
I have 282 Crower Stage 3 in a 2005 WRX built head on a v8 spec c block.

The idle is like a V8, but no CEL.

Just make sure all your readyness tests work and no CEL, you will be all set.

Where are you located?

-G

Nothing wrong with idling like a V8; my toy car is a V8 and its got a decent lope to the idle. Its more the threat of almost constant CELs that Im worried about.


I think I'm going to go for the more aggressive cams after looking into it more. Might as well do it right the first time.
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