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TT331FB · 04-18-2007, 08:09 AM

Hi Tuners, I have been chasing a problem and I think I have discovered a significant clue. Normal idle is 800 RPM, about 22 KG/HR, .7 volts.

When the fan comes on, the engine usualy dies. I data logged this and saw that the MAF voltage went up as the RPMs went down. see below

RPM 800 700 600 500 400 300
MAFV .7 .71 .72 .78 .8 .85

Maybe it's time to give up on this C&L meter and go back to stack or a Pro Air meter.

Input?

Thanks, Eric

04-18-2007, 08:09 AM	#1
TT331FB Member Join Date: Aug 2005 Posts: 53	76MM C&L volts goe up when RPM goes down Hi Tuners, I have been chasing a problem and I think I have discovered a significant clue. Normal idle is 800 RPM, about 22 KG/HR, .7 volts. When the fan comes on, the engine usualy dies. I data logged this and saw that the MAF voltage went up as the RPMs went down. see below RPM 800 700 600 500 400 300 MAFV .7 .71 .72 .78 .8 .85 Maybe it's time to give up on this C&L meter and go back to stack or a Pro Air meter. Input? Thanks, Eric __________________ TT331FB - T3/.6/.63 turbos, Spearco intercooler, 302/331 Mexican Block,AFR 185 heads, 80mm MAF, 75mm TB, 50# injectors, Tweecer, Track Heat intake, Comp cams roller blower grind, MSD BTM, DIY-WB, Yokogawa video display,T-56 tranny, 9" 3.5:1 Traclock, 4x disk brakes, TCP most everything, shelby roll bar. First fire up 2/14/2004.