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Old Oct 8, 2004 | 01:29 PM
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Just finished my heads/cam install and did a scan. My LTFT2's hold steady at 25 and occasionally drop down to one or zero, but then start to rise to 25 again. Tha car idles and drives VERY rough. What is the problem??!?!
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Old Oct 8, 2004 | 01:32 PM
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Check for any vacuum leaks. Is this isolated to one bank or both?
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Old Oct 8, 2004 | 01:33 PM
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Originally Posted by HumpinSS
Check for any vacuum leaks. Is this isolated to one bank or both?
Back 2, I went to Autozone and according to the scan he did it says Bank 2 is running lean. Why would it be running lean?!?!
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Old Oct 8, 2004 | 01:34 PM
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Also, Im throwing a P1211 code, which I looked up as being "Mass Air Flow Circuit Intermittent High". Any suggestions...?
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Old Oct 8, 2004 | 01:39 PM
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ok, looking at the log I made again, the O2 B2S1 sensor reads no higher than 20, and reads 0 most of the time. What could be causing this?? Bank 2 is the passenger side correct? And S1 would be the pre-cat O2 sensor?
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Old Oct 8, 2004 | 01:48 PM
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Yes sounds like you have an exhaust leak and fresh air is hitting your o2 sensors. Find another maf temporarily and use that to see if it gets rid of the codes
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Old Oct 8, 2004 | 02:07 PM
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Originally Posted by HumpinSS
Yes sounds like you have an exhaust leak and fresh air is hitting your o2 sensors. Find another maf temporarily and use that to see if it gets rid of the codes
ok it turns out I had my bellows off a little bit after the MAF, that fixed it for about 10 minutes. However, it is right back to doin it again... I cant get my hands on another MAF...
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Old Oct 8, 2004 | 02:08 PM
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Are all your PCV line attached securely
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Old Oct 8, 2004 | 02:15 PM
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Originally Posted by HumpinSS
Are all your PCV line attached securely
as far as I can tell yes, but if it was any of those problems wouldnt both backs be running lean, not just the one?
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Old Oct 8, 2004 | 02:23 PM
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Yes but it seemed like you were attacking the MAF fisrt so I asked to make sure all your connections were solid. I am betting the passenger bank has some sort of exhasut leak or a bad o2 senor that hanst thrown a code yet. Swap both o2 and see it it follows to the next bank
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Old Oct 8, 2004 | 02:31 PM
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Originally Posted by HumpinSS
Yes but it seemed like you were attacking the MAF fisrt so I asked to make sure all your connections were solid. I am betting the passenger bank has some sort of exhasut leak or a bad o2 senor that hanst thrown a code yet. Swap both o2 and see it it follows to the next bank
so you're saying it could be either O2 sensosr, front or rear on the passenger bank?
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Old Oct 8, 2004 | 02:49 PM
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Front on the pas bank swap it to the drivers side and see what happens. If it moves it the o2 if it doesnt look for a leak somewhere before teh o2 sensor.
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