Gas guzzlin 5.0

[79Bronco5L]

Well, here we go again. No power, and burnin lots of fuel. Does anyone know what makes a eec-iv speed density system go into closed loop control, is it temp or just after a certain period of time. My o2 sensors are reading super rich, but I don't think the computer is trying to compensate for it. All my electrical connections check out, and the computer isn't throwing any codes. 4 MILES PER GALLON, @ $5.00 a gallon, do the math, I NEED HELP!

[MonteCitan]

Check the MAP sensor and test the TP sensor...

MAF could be dying, too - that is assuming you've done the EFI swap

[Cajun JungleBoy]

lol my 5.0 burns shit loads of gas.... and is super hot... but that is prolly because of the blower...

[Scut95]

Quote: lol my 5.0 burns shit loads of gas.... and is super hot... but that is prolly because of the blower...

I thought my car was running really hot, i threw a mechnical gauge in and found it was running between 190-210...the fan kicks on at 210, the stock gauge is up in the upper end towards the H FYI....the gas is probably the blower, boost is a great thing except for gas milage haha

[79Bronco5L]

Quote: Originally Posted by MonteCitan Check the MAP sensor and test the TP sensor... MAF could be dying, too - that is assuming you've done the EFI swap

Been there, tried that. Thanks for the input, though. Think its almost time for a carb!