cps, and turbo lag!! - Ford Powerstroke Diesel Forum

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post #1 of 14 Old 03-02-2007, 03:21 PM Thread Starter
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cps, and turbo lag!!

lately my truck has been dying randomly, alls i would do is put it in park, and start it, and it would fire... but today it died, and wont start... cps??? and also, i finally got my ts 6 pos chip, very happy with the power, i also installed my air intake, but with all of that i lost my boost, i went from 23 down to barely 16... and it wont register on my gauge until like 2200 rpm, then shoots up to 16 and can definitely tell when it kicks in, then shifts at 3200 rpm... is that normal, or what can i do to help? thanks for your help
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post #2 of 14 Old 03-02-2007, 06:31 PM
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You should be seeing more boost and faster spool with an aftermarket intake. Check the clamps on the y-pipe, the turbo outlet, etc. Make sure the MAP hose is good. If all that's ok, take the hose off the turbo inlet and look at the wheel, make sure it doesn't look damaged or sandblasted.

As far as the stalling/no start, the CPS is a good place to start. Beforehand though, check all the fuses in the power distribution box.

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post #3 of 14 Old 03-02-2007, 08:08 PM Thread Starter
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ok thanks, i'll be sure to check it out in the morning before work...
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post #4 of 14 Old 03-02-2007, 08:43 PM
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i aggree, but i want to add, replace your cps then see what your boost is. being your engine needs a new cps you may not be running at full performance. possibilly caused by the cps.


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post #5 of 14 Old 03-03-2007, 05:21 AM
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Does the Tach move when you crank on it?? If it don't almost definetly a CPS

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post #6 of 14 Old 03-03-2007, 08:41 PM Thread Starter
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no the tach hardely moves, so hopefully this fixes it, im a broke college student in wyoming, cant afford too much haha.....
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post #7 of 14 Old 03-03-2007, 09:15 PM
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Hey Smyth, as said above, check the connection for the boost gauge, because with what you have done, you should not loose boost, in fact you should be picking up a little. And I agree with the CPS causing the start problem.

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post #8 of 14 Old 03-03-2007, 10:17 PM
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Off Topic- You going to wyo-tech or UW? I lived in Ft Laramie, and Lingle for a few years. Good hunting.

On Topic- Go to an international dealer or ebay for the cps as it is quite a bit cheaper than going to ford. Good luck

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post #9 of 14 Old 03-03-2007, 10:25 PM Thread Starter
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i am at wyotech for applied service manegement, and diesel.... three months left but yea, i ordered one off of ebay before it went out completely, but it hasnt arrived yet...
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post #10 of 14 Old 03-04-2007, 06:46 AM
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I thought about going to wyotech, never did though.

'96 F250 4x4 Ext Cab, 5 speed. K&N FIPK - modified to use 6637; 3" downpipe, 6" stack; Beans modded IDM; Beans stage 2s; shimmed FPR; exhaust brake; 6 position TS; locked 4.10s
'93 F250 4x4 regular cab long box. 7.3IDI nonturbo/E4OD 8' Western. STAYING STOCK
'65 Pontiac Tempest, 406ci chevy small block, TH350 with shift kit, 2700 stall converter.
'01 HD XL1200S - Lots of Screamin Eagle goodies
'96 Tbird LX V8

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