speed density or mass air???running rich

[bigdave210]

ok i know this is probally a really dumb ass question...... but how do you tell if your car is mass air or speed density? i only ask cause the guy before me mutilated some wires. the car is running rich and i figure if it is maf i should probally fix it ASAP. i know he deleted the egr and i found some vacuum lines that were uncapped. i plug those up and it seems to idle and run a bit less rich. but i still can smell fuel...... i cleaned the coolant temp sensor like the write up said. checked the iat and its brand new.


i drive an 88 gt 5.


sorry for such a jack ass question ive never owned an older muscle car or a ny muscle car for that matter

[thatdavidkid]

it came as a speed density, i would check for some more vac. leaks, unless he converted it to mass air, it is speed density, which reads off of a manifold pressure sensor, so (not that it's any less important on a maf car) vacuum is especially important on a speed density car. and a mustang isn't a muscle car, it's a pony car(long nose, short back 4 seater 2 door rear wheel drive)

[Sonic Blue 85]

Most likely it is speed density, but the '88 California cars use MAF. I have only seen one of those, so most likely it is not a California car.