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FSracer9
12-29-2009, 09:17 PM
can anybody lead me in the right direction here? i've been changing things for the last two nights on my car and its gotten better, but still not 100%. first it would start cutting out at half throttle and had no power. so i changed the cap, wires, and rotor for a small improvement. then it started surging at idle but that went away. after adjusting the timing back to where it is supposed to be i can get about 3/4 throttle before it starts dumping way too much fuel in. then its just a stream of flames and cracking thru the exhaust. it's a 1.5 liter sohc mitsubishi engine. any input would be appreciated, thanks

critter
12-29-2009, 09:27 PM
did u check the plugs ? maybe need some back pressure ?? just tryin to help

FSracer9
12-29-2009, 09:30 PM
plugs look good. and me being the dumbass i am decided to put my hand over the exhaust for back pressure with no success. its freakin hot haha

jimwhite
12-30-2009, 08:24 AM
check to see if you have a rev limiter on the car i know the saturns wont rev up unless they are in gear good luck

don38
12-30-2009, 09:42 AM
What year? Sound like a sensor issue. mass air flow

LM13
12-30-2009, 10:56 AM
What year? Sound like a sensor issue. mass air flow
That's what it is, the arm is pulling away from the sensor board at half throttle.

FSracer9
12-30-2009, 10:27 PM
it's a '94 plymouth colt. thanks for the advice. i was trying to get it ready for saturday but with working two jobs its not looking so good. and jim, it does it while its driving too in any gear

TEAM TAZ RACING
01-02-2010, 09:23 AM
Same car we have but our 1st the camshaft was worn take a look at rockers see if they all moving same