I NEED Boost... Opinions puh-lease - Toyota Yaris Forums

Focus_Sh1ft · 12-18-2012, 01:12 PM

No, all four plugs are getting fouled. Even though the afrs are running from super rich to super lean, they're generally on the rich side (especially in open loop). There's no way all four injectors are suddenly sticking. I'd also expect to see a slightly higher compression in one cylinder from carbon buildup.

Also, to be clear, when I run open loop my afr sensor is NOT plugged into the harness and NOT downstream. Therefore no values are being read.

Even though the ecm is ruled out, I still can't get over the nagging feeling that this is somehow electrical (I checked all fuses BTW)...

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12-18-2012, 01:12 PM	#11
Focus_Sh1ft Drives: 08 Yaris Turbo; 06 tC Turbo Join Date: Jan 2010 Location: New Jersey Posts: 875	No, all four plugs are getting fouled. Even though the afrs are running from super rich to super lean, they're generally on the rich side (especially in open loop). There's no way all four injectors are suddenly sticking. I'd also expect to see a slightly higher compression in one cylinder from carbon buildup. Also, to be clear, when I run open loop my afr sensor is NOT plugged into the harness and NOT downstream. Therefore no values are being read. Even though the ecm is ruled out, I still can't get over the nagging feeling that this is somehow electrical (I checked all fuses BTW)...