 Missfire? |
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 May 28, 2008 - 2:30 PM
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Enthusiast  Joined Aug 19, '07 From Farmington, MI Currently Offline Reputation: 7 (100%)  |
So, I have a slight missfire here in there in the rpms, at low around 1300 it does it , but i can continue to rev it up fine. Also when i rev it up all the way, it seems to stop around 6k, and its sounds like a 2 step. Now i am wondering if that could be caused by the TPS being off, plugs not gapped right. I have changed spark plug wires, cap and rotor, fuel filter, it has bkr7 plugs from twosrus, i think theyare suppose to be gapped to .32 right? so what could cause a slight missfire and the rpms to hold off at high rpms like that, when driving i can still take it to 7k no problem?
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May 28, 2008 - 3:08 PM
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 Enthusiast Joined Aug 31, '02 From Philadelphia, PA Currently Offline Reputation: 8 (100%) |
adjust your tps.
-------------------- 15PSI - 30MPG - Megasquirt Tuned
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May 28, 2008 - 4:04 PM
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Enthusiast Joined Aug 19, '07 From Farmington, MI Currently Offline Reputation: 7 (100%) |
yes, i know but see i tried to understand the bgb guide, i really don't understand it, you also told me i need feeler guage but where can i get those from, and if u could explain to me how to adjust my tps is noob ways that would be great,
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May 28, 2008 - 4:29 PM
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Enthusiast Joined Aug 31, '02 From Philadelphia, PA Currently Offline Reputation: 8 (100%) |
This is a feeler gauge. You can get them at any parts store for about 5bucks.
 Look at page 5 of this bgb... http://www.celicatech.com/93rmsour/1993/93...ca/fi/throt.pdf 4. IF NECESSARY, ADJUST THROTTLE POSITION SENSOR (a) Loosen the two set screws of the sensor. (b) Apply vacuum to the throttle opener. *IGNORE THIS STEP* (e) Insert a 0.60 mm (0.024 in.) thickness gauge, be– tween the throttle stop screw and stop lever. (d) Connect the test probe of an ohmmeter to the ter- mi– nals IDL and E2 of the sensor. (e) Gradually turn the sensor clockwise until the ohm– meter deflects, and secure it with the two set screws. *Turn the sensor until it reads 0ohms* (f) Recheck the continuity between terminals IDL and E2. Refer to the chart in that pdf. This post has been edited by lagos: May 28, 2008 - 4:30 PM -------------------- 15PSI - 30MPG - Megasquirt Tuned
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May 28, 2008 - 5:56 PM
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Enthusiast Joined Aug 19, '07 From Farmington, MI Currently Offline Reputation: 7 (100%) |
k, i did that, i got it to a point where it was either 198ohms or something or just flat 0 with the .60mm insert/ is that around where it should be or should it be dead on?
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May 28, 2008 - 7:01 PM
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Enthusiast Joined Aug 31, '02 From Philadelphia, PA Currently Offline Reputation: 8 (100%) |
It should be right on 0ohms.
-------------------- 15PSI - 30MPG - Megasquirt Tuned
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May 28, 2008 - 10:09 PM
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Enthusiast Joined Aug 19, '07 From Farmington, MI Currently Offline Reputation: 7 (100%) |
i also have another question, when my car is still i rev it and it goes to like 5kish and it sounds like a 2 step or a miss or something, but when i am driving it i can go to 7?
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May 29, 2008 - 12:54 AM
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 Enthusiast Joined Sep 6, '04 From oakdale Mn Currently Offline Reputation: 0 (0%) |
was this problem also there before you calibrated the tps?
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May 29, 2008 - 11:22 AM
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Enthusiast Joined Aug 19, '07 From Farmington, MI Currently Offline Reputation: 7 (100%) |
ya, its still there after i adjusted it
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