songs4funs

2.5L Jeep Engine . In 1991 the injection was upgraded from. I wouldn't necessarily spend the time and money to regear at 31 tires, but definately would at 33. Tales of these 2 engines reliability will be told throughout the ages. Jeep Wrangler 2.5L 4 Silindir 125HP Benzinli Komple Motor from efejeep.com I run stock 4.10 axle gears with 33 tires and, with many performance mods, it does okay. This is a powertrain control module (also known as an ecm, pcm, or ecu) for a 1990 jeep wrangler 2.5l.;