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Discussion Starter · #1 ·
I've read the thread and the link that went to F150
online for the Lightning guys. I have a stock throttle body.
Here's what I've done so far and no change. Car idles around
575-600 after warmed up, around 2k slow increase in speed car sometimes stumbles, if I push in the clutch the car stalls and quits
about 50% of the time. Any Ideas?
1. Changed oil to 5w30 synth, no change.
2. Changed Plugs had 2nd run plugs 22's put in NGK TR5's
gapped @ .40 no change
3. Disconnected IAC, cleaned, "It was BLACK!" no change.

Anyone had to set the idle higher, or adjust the TPS ?

Input Greatly Appreciated
:cool:
 

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Snake Charmer
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2,830 Posts
Is it throwing any codes? CHeck all the vacuum/PCV lines etc. How about the DPFE sensor?
 

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Discussion Starter · #4 ·
Shadowgray03 said:
Is it throwing any codes? CHeck all the vacuum/PCV lines etc. How about the DPFE sensor?
No codes, fuel pressure at idle is all over the place
15-30psi at idle. What's the DPFE sensor??
O2 sensors are talking, Mass air "stock" voltage ok, plugs @.40
ok, replaced IAC, checked all vacuum lines ok, TPS voltage ok. Ordered a fuel filter and fuel pressure regulator, comes with regulator, hoses, and a "sensor"? Been on order over a week.
Thanks.
 
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