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Sensor feedback pulses on and off! Runs terrible!

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Old Apr 23, 2009 | 04:40 PM
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roguecoxnet's Avatar
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Sensor feedback pulses on and off! Runs terrible!

I don't know what happened. It ran great down the street until I go into a constuction zone and hit a small bump. bam the engine started running like crap. I checked everything (computer,ign module,spark,Fuel psi, timing is on, Coil and checked the connectors, full tank of gas from QT!!) sensors all read good on tunerpro. seems like theres alot of heat coming from the engine but the temp reads 175 at the most because I put a 160 thermostat in. The funny thing is what I can manage to keep it running and watch the streaming data on tunerpro everytime the engine craps out all the sensors drop to zero on the line graph then it pulses back on and all the sensors show up again. I checked the computer ground, even swapped a new computer. same problem.
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