7.3 MAP fooler - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 10-27-2007, 08:01 PM Thread Starter
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7.3 MAP fooler

I got my 4.7V diode in the mail the other day from dlonno. Thanks, Dave. I installed it and had a chance to test it out now for a couple of days. I loaded my SuperChips "race" tune back on, which before would defuel when the engine light came on (presumably for overboost). Now when I run high boost (25-26 psi) the engine light still comes on but it doesn't defuel, which is good, but then why would the engine light come on unless it's for something else, like high injection pressure or something? Any ideas?


'03 F-350 6.0L C/C SB FX4 SRW
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post #2 of 3 Old 10-27-2007, 08:22 PM
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I would say its your injection pressure too low lik youe said

2000 F250 cc 4x4 4" lift BFG 315's,,dp tuner Auto Meter gauges, Hybrid 235cc injectors,TN BB turbo,water meth injection,Ragin intake,ITP boost fooler Banks intercooler,big head wastegate,power elbow,torque converter,6.0 tranny cooler,High flow intakes AIH delete air ride air bags,gibson 4" exhaust,zoodad mod, remote start, Pioneer dvd/ navigation Sirrus radio,sun coast tranny ,Bts valve body,H11 s,Engine rebuild .030 over,Fluid Dampner,203 thermostat

425hp 775 Tq
13.9 @ 95 mph
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post #3 of 3 Old 10-27-2007, 08:33 PM
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do you know someone with AE or a snap on scan tool so you can check ICP at WOT?

Early 99 (Born on 11-20-98) F350 CC LWB 4X4
north of 480hp and south of 13.7sec
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