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Old 11-09-2012, 12:15 AM
Rowdy123 Rowdy123 is offline
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Angry 2003 Dodge Ram 3.7 litre Help!!!

I have a dodge ram 2003 3.7 litre and I have installed a K&N Cold Air Intake, Pulstar Iridium Power spark plugs, Flowmaster 40 series muffler, 22 inch rims and I have just installed a autochipsdirect chip. And, I can actually feel the difference in the pedal. Definately faster. But, I didn't want to do it but to install the powerbox(chip) I had to splice my IAT sensor wire to connect it. Now, my check engine light is on. I have only had it installed for a day and since I do feel a real difference, I don't want to take it off. Before I installed the chip, I had an airram powerwire but I really never felt anything from it. But, when I installed it the check engine light came on as well but eventually went off. Does anyone have any suggestions for me. Tomorrow I am having a flex-a-lite 183 fan installed as well. I hope to get some more power and torque from it also. I am trying to get all the power I can from my 3.7 because I got a great deal on the truck and it is great shape. Money is just tight so I cannot do much more right now.
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Old 11-11-2012, 08:11 AM
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You need to tune the the thing and get better gears to get it moving (especially with thoe big ass heavy 22's). 4.56's will go a long way in this department. A higher stall TC will also (3.7 torque curve is higher up in the rpm band). Hemifever tuning can verify if your PCM is compatible with SCT 9550. If so, Sean can hook you up with custom tuning (for a price obviously). Just keep in mind there really aren't aftermarket or even factory hop up parts for this engine and that it is a small engine pushing a large vehicle.
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