P2187 and p2177

A

Alex Epstein

Greenie N00B Member
I’m having an issue with my 2006 mazdaspeed 6 I just recently got a Chaco engine light for a p2177 and p2187 which are system too lean on and off idek I don’t have much done to the engine modification wise other than the coob 93 octane hipo tune and a cold air intake. Does anyone have any insite on this before I just go buying parts? I’ve heard it could be so many different things like an o2 sensor, vacuum leak, MAF sensor, some gaskets. I’m really not sure what to look for if someone could please give me some expertise on this I’d really appreciate it.
 
Alex Epstein said:
I’m having an issue with my 2006 mazdaspeed 6 I just recently got a Chaco engine light for a p2177 and p2187 which are system too lean on and off idek I don’t have much done to the engine modification wise other than the coob 93 octane hipo tune and a cold air intake. Does anyone have any insite on this before I just go buying parts? I’ve heard it could be so many different things like an o2 sensor, vacuum leak, MAF sensor, some gaskets. I’m really not sure what to look for if someone could please give me some expertise on this I’d really appreciate it.
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I’m also getting an occasional misfire and a really rough idle when it’s hot
 
Clean your MAF sensor and check all your hoses and clamps on intake side first. Both of those codes can come from dirty MAF or vacuum leaks. Do you have a AP or other means of reading codes and checking data values?
 
jdr767 said:
Clean your MAF sensor and check all your hoses and clamps on intake side first. Both of those codes can come from dirty MAF or vacuum leaks. Do you have a AP or other means of reading codes and checking data values?
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I have the coob access port my MAF readings are good and I’ve checked all hoses for lose connections or damaged hoses and they all look good somebody told me bank 1 intake o2 sensor and I’m actually about to put it in
 
doesn't matter if readings are good for MAF, or not for clean your MAF, clean it. could be bank 1 O2 sensor. What's mileage on the car? Failed PRV could do it, any fuel leaking near intake manifold (under it) could be leaking or failing injectors (doubtful but could be).

once this is sorted please upgrade your HPFP internals yes an intake can cause ZZB on the speeds (gen1 less so then 2).
 
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