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The Terminator
Exhaust
Densecharger, X-pipe, 3" catback, Amazon Chip = Check Engine Light
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<blockquote data-quote="SONICMAN" data-source="post: 192906" data-attributes="member: 5113"><p><strong>New Info!</strong></p><p></p><p>I scanned the computer this morning with the Scan tool. I found that I had two codes again. P0172 and P0175, too rich and too lean banks 1 and bank 2. I checked the Freeze data when the light came on. The computer stores all relevant data when it lights up the check engine light.</p><p></p><p>Rpm = 1643</p><p>Throttle postion = 24%</p><p>Load = 23 %</p><p>Long term Fuel trim bank 1 = -25%</p><p>Long term Fuel trim bank 2 = -25%</p><p>Coolant temp = 183 F</p><p>MAF = ~3 lbs/min.</p><p>Closed loop fuel operation</p><p></p><p>This means that the fuel curve was so rich at light throttle cruising at 1643 rpm that the long term fuel trim had leaned out the mixture by 25%. Something is causing the system to run extremely rich.</p><p></p><p>I pulled the diablo chip out and reset the computer. The long term fuel trim at idle is now at -17% after 6 miles of driving. At ~1600 rpms the long term fuel trim is at -8.8% after 6 miles of driving. I believe with extended driving I am going to get to the -25% again at ~1600 rpm. I will drive some more tonight and see. If it does it without the chip than the chip is not the problem. I am also reading MAF = .60 to .72 lbs/min while idling with the a/c off. mjchip checked his settings at idle and his MAF = ~.50 lbs/min at idle. I believe I am getting exagerrated MAF readings with the Densecharger at idle, as can be seen with the -17% long term fuel trim at idle. I am not going to pass judgement yet, because I really like the Densecharger. The intake air temp never gets high with it and the faster you go you get back to ambient air temp with it. That part is really nice.</p><p></p><p>More to come...................................</p><p></p><p>Brian</p></blockquote><p></p>
[QUOTE="SONICMAN, post: 192906, member: 5113"] [b]New Info![/b] I scanned the computer this morning with the Scan tool. I found that I had two codes again. P0172 and P0175, too rich and too lean banks 1 and bank 2. I checked the Freeze data when the light came on. The computer stores all relevant data when it lights up the check engine light. Rpm = 1643 Throttle postion = 24% Load = 23 % Long term Fuel trim bank 1 = -25% Long term Fuel trim bank 2 = -25% Coolant temp = 183 F MAF = ~3 lbs/min. Closed loop fuel operation This means that the fuel curve was so rich at light throttle cruising at 1643 rpm that the long term fuel trim had leaned out the mixture by 25%. Something is causing the system to run extremely rich. I pulled the diablo chip out and reset the computer. The long term fuel trim at idle is now at -17% after 6 miles of driving. At ~1600 rpms the long term fuel trim is at -8.8% after 6 miles of driving. I believe with extended driving I am going to get to the -25% again at ~1600 rpm. I will drive some more tonight and see. If it does it without the chip than the chip is not the problem. I am also reading MAF = .60 to .72 lbs/min while idling with the a/c off. mjchip checked his settings at idle and his MAF = ~.50 lbs/min at idle. I believe I am getting exagerrated MAF readings with the Densecharger at idle, as can be seen with the -17% long term fuel trim at idle. I am not going to pass judgement yet, because I really like the Densecharger. The intake air temp never gets high with it and the faster you go you get back to ambient air temp with it. That part is really nice. More to come................................... Brian [/QUOTE]
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The Terminator
Exhaust
Densecharger, X-pipe, 3" catback, Amazon Chip = Check Engine Light
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