My car is running a little rich and I do not want to have to have a chip burned or turn down my fpr because it is new and welded in place. I know that I can tune with resistors, but I need a starting point: what resistor to buy for a car runnin a lil rich?

 

Are you talking about the resistor that you put in the sensor that goes in the air cleaner housing? If so, it is a 5.7

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89 RS Camaro
Hedman Headers, Highflow Cat, Flowmaster 80 Series
180 Degree Thermo
Open Air Element with K&N Air Filter
Custum Burned Chip

So Many Mods......so little time

www.rit.edu/~cjp8408
AIM: PopaPork

 

If you are talking abotu the IAT resistor mod it's a 4.7 K ohm. Not a 5.7 I suppose a 5.7 will work but i don't know what that translates to tell the ecm. But 4.7 tells the ECM that the incoming air is 55*F. But if you are running rich this won't help you at all. All the resistor does is add more fuel.

Read Trax's Prom Burning article and lurk around the DIY Prom Board and learn to burn your own. The knowledge you get is amazing and it's a Heck of a lot cheaper than having someone else burn you one. Just my opion though

-Lars

 

you need to find out the real reason your car is running rich. how do you know its rich? those would be questions to be answered before taking a shortcut like plugging a resistor into the iat plug.

 

it ran good then i made the fpr adjustable then it ran like **** then i put a new fpr on it and it runs way better but still a lil rich

 

if its a "lil" rich, your ecm will tune to correct that automatically. got a way to check your blm #'s or integrators?

 

you cant tune with resistors, dont even bother with the IAT either. Chips arewhere its at