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Old Jan 20, 2013 | 01:44 AM
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Sprout / pip / knock sensor

It came to my knowledge that the sprout unplugged allows you to time and where to un plugged shows based timing before auto advancement is it possible to run with it unplugged and start all the time with out it with no problem I ask because you can't find old knok sensors have an 98 F 150 5.0 EFI enjion coad n just curious
 
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Old Jan 20, 2013 | 03:01 AM
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I'm sorry, but I had some difficulty interpreting what you wrote.

Pulling the spout prevents the EEC from automatically adjusting the ignition timing. It does this based on various operating parameters to attempt to run the engine at its most optimal capability. Why would you want to disable that?
 
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Old Jan 20, 2013 | 09:49 AM
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Originally Posted by Mddagati
is it possible to run with it unplugged and start all the time with out it with no problem
Yes.. but the motor won't make any power so I don't see the point.

Originally Posted by Mddagati
I ask because you can't find old knok sensors
Knock sensor has nothing to do with starting so I don't see how this is related.

Originally Posted by Mddagati
have an 98 F 150 5.0 EFI
No you don't, the last year the 5.0 was installed in an F150 was '96 so if your truck is a '98 it's got a 4.6L.
 
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Old Jan 20, 2013 | 10:37 AM
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It's an 89 f 150 the only reason I ask is because the computer a temps to compensate to far and causes a knock the knock sensor is supposed to prevent
 
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Old Jan 20, 2013 | 01:28 PM
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It causes a knock when? At startup? While you're driving?
 
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Old Jan 20, 2013 | 03:00 PM
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The odd thing when I slow down and when it ideas but only after the computer a temps to advance timing
 
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Old Jan 20, 2013 | 03:01 PM
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I belive timing is sent between 18 and 25 can't remember
 
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Old Jan 20, 2013 | 07:09 PM
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Sounds like you need to check the timing. Get your timing light attached, loosen the distributor clamp bolt and start the engine and let it settle into a steady idle(good idea to get it warmed up a little beforehand). Now find the spout plug in the distributor wiring harness.. a little grey plug, and pull it out to disable computer advance. Then turn the distributor until you see 10deg BTDC on the crank balancer, snug down the distributor, put the spout plug back in, and disconnect the timing light. Now the timing is set where it's supposed to be so you shouldn't have any knocking, but take it for a test drive to see and report back.
 
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Old Jan 20, 2013 | 09:59 PM
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I have done that and the truck ideas super roph and dies off before long almost like it can't keep timing in check I will try it again tomorrow and let u know but wondering if it could be tfi modual
 
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Old Jan 21, 2013 | 12:28 PM
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TFI modules generally work or then don't work meaning the engine runs fine or it won't run at all, so rough idle is more likely the result of a vacuum leak.
 
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Old Jan 22, 2013 | 12:10 AM
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It's their any particular wasly to check vacum without destroying the hose
 
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Old Jan 23, 2013 | 12:30 AM
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Get a vacuum gauge, a T-fitting for one of the vacuum lines, and a short section of hose, and install it between the line and its fitting. You should be able to do this without destroying anything.
 
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Old Jan 25, 2013 | 09:40 PM
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So I timed my truck and ran it for bought an hr set if to 10 before tdc on tdc 10 after tdc and I'm almost at 20 tdc and it seems to run the best at 10 before tdc I had no power but it rane great but super slow to acceleration
 
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Old Jan 26, 2013 | 05:16 AM
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10 before TDC is the correct base timing (without SPOUT). Were you running the engine with the SPOUT plugged back in after setting the timing?
 
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Old Jan 26, 2013 | 12:07 PM
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Yes best to my knowledge I did it correctly
 
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