99 F250 ECM woes - Ford Powerstroke Diesel Forum
 
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post #1 of 7 Old 07-19-2014, 02:28 PM Thread Starter
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99 F250 ECM woes

I had a hypertech 40 hp chip in my computer. I pulled the computer, took out the chip, and then plugged it all back in and now it will not start. It turns over fine, but will not fire. SES light is on when you turn the key on and when you crank the engine. I removed it all, re-installed the chip, and still the same results. Any thoughts? Is there any way to actually test the computer? It acted like this when the CPS went a couple of years ago, so I put the Ford upgraded CPS in and no problem. Thanks for any help.

Rob



Early 1999 F250 X/C Lariat 4X4 Off Road
Hypertech 40 HP Chip
DIY Tymar intake
Exhaust Brake
Grill Insert- color matched to truck
Rhino Liner- color matched to truck[SIGPIC][/SIGPIC]
GlassTite topper- color matched to truck
4" suspension lift
35" BFG All Terrains on Weld Cyclone rims
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post #2 of 7 Old 07-19-2014, 03:13 PM
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Do you have a WTS light when you first roll-on the key?
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post #3 of 7 Old 07-19-2014, 04:27 PM Thread Starter
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No the WTS does not light up. Is there any way to test the computer such as a scanner or something. Or is it "dead" and I go buy a new one??



Early 1999 F250 X/C Lariat 4X4 Off Road
Hypertech 40 HP Chip
DIY Tymar intake
Exhaust Brake
Grill Insert- color matched to truck
Rhino Liner- color matched to truck[SIGPIC][/SIGPIC]
GlassTite topper- color matched to truck
4" suspension lift
35" BFG All Terrains on Weld Cyclone rims
Powerstrokin' is offline  
post #4 of 7 Old 07-19-2014, 07:31 PM
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Check the PCM/fuel bowl heater fuse.

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post #5 of 7 Old 07-19-2014, 07:32 PM
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Did you happen to remember to remove the keys out of the ignition when you pulled the chip?

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96 CCLB F350 4x4 stock



EDGE,S&B,SCT,PHP Hydra,TS-Perf,OEM parts,Sam Wyse trans,VB's,LED's,MBRP,ISSPRO,ICON,FOX,KC TURBOs,SD 7.3 fuel kits, HPOP lines

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post #6 of 7 Old 07-20-2014, 03:51 AM Thread Starter
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Right I will check the fuse. I think the key was in when I disconnected the harness outside. I pulled the key when I opened the door to pull the box itself out.



Early 1999 F250 X/C Lariat 4X4 Off Road
Hypertech 40 HP Chip
DIY Tymar intake
Exhaust Brake
Grill Insert- color matched to truck
Rhino Liner- color matched to truck[SIGPIC][/SIGPIC]
GlassTite topper- color matched to truck
4" suspension lift
35" BFG All Terrains on Weld Cyclone rims
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post #7 of 7 Old 07-20-2014, 09:18 AM
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Quote:
Originally Posted by Powerstrokin' View Post
Right I will check the fuse. I think the key was in when I disconnected the harness outside. I pulled the key when I opened the door to pull the box itself out.
Im gonna say you probably fried your PCM. But i really dont know for sure. Are you able to hook up a good scan tool to see if you get comm error?

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E99CCLB 450/400s,STG1cam, KC38R, 4" exh,CNC FAB fuel&oil lines,140vIDM,BTS,S&B

97 ECLB F250 4x4 stock
96 CCLB F350 4x4 stock



EDGE,S&B,SCT,PHP Hydra,TS-Perf,OEM parts,Sam Wyse trans,VB's,LED's,MBRP,ISSPRO,ICON,FOX,KC TURBOs,SD 7.3 fuel kits, HPOP lines

www.cncfab.us or email sales@cncfab.us

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