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FML Another IMRC thread (stuck open)
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<blockquote data-quote="AZSN95SNAKE" data-source="post: 11956578" data-attributes="member: 122889"><p>That's exactly what I got from my research, and if I am not mistaken that info was from you lol. It makes perfect sense. If the IMRC are stuck open wouldn't the PCM add the spark advance? or is that not always the case since I do have a code for it, I figure the PCM would not trigger the spark advance. It has hard to tell if the car is losing power up top. Although I firmly believe it is. I have raced my friends mach 1 various times and I have never lost to him. Since I noticed the car is sluggish, I get the initial hit (roll race) and as soon as I get into upper RPMs he passes me like I'm not moving. I might be able to get a video of this.</p><p></p><p>I'm wondering the same thing; will it add spark advance when they are stuck open or not. Like I said it might not since there is a code for it on. The code might not allow for the spark advance to come through. I may be able to zip tie them and do a datalog. I have an SCT tuner, I just need to download the livewire software and learn how to do it. Unfortunately I can't do this until my summer courses are over (hard pressed on time). In about 1 month.</p><p></p><p>Interesting way of fooling the PCM, haven't seen that one before. Sounds legit to me. Well with the deletes I know that some power is lost down low but it's nothing 4.10s can't cure. And I know that there are a few horses to be gained up top.</p><p></p><p>I have seen the relay circuit in old threads from non other than yourself. It's interesting. I have read good success when using it. I'd have to have my brother in law work that one out, I'm no good at electrical.</p><p></p><p>I concur. It is also think it is a frayed cable issue. I've just never seen IMRC's gunked and stuck open. It is possible I guess. If it's a frayed cable, I'm doing deletes forsure. One of the cables is stuck and won't budge when I tug on it a bit. It is stuck open, so it appears to be pushed in. So I suspect cable or the actuator is dead. Ah yeah a KB would negate any need for IMRC. Also you've saved yourself the headaches.</p><p></p><p>Yes I do need to take the top apart regardless. I will take pictures of it indeed. I'd like to get to the bottom of this. I might just delete them after all.</p><p></p><p>It's actually a pretty good idea but like you said the implementation is flawed. Some V6 and 3vs as well as other vehicles carry the same IMRC idea. Well the tumble port design of the C heads was a much better idea imo. I wish they would have thought of that sooner lol. Than I'd have some low end grunt.</p><p></p><p>Thanks for the tip on the gaskets! I've seen them get ruined using other solvents. I wouldn't try using brake cleaner nor carb cleaner on them. I'll make sure to let them dry up well.</p><p></p><p>About the SCT tunes; I did not know that. I'm going to email BAMA since I get free tunes from them. Since they should have these basic imrc delete tunes it would not be a bad idea to ask them. Although, the 3 tunes that I currently have from them are crap, unless it is just my motor. But if I switch to the street, or performance tune the car idles rough and out of no where a pinging sound pops up for a few seconds. Might just be my car though. The race tune is okay but it has done said pinging as well. I reverted back to the stock tune and the car runs and idles great! The CEL for the o/x has not come on after 2 tanks; which is the only reason I bought the tuner since my mils malfunctioned. They seem to function now though since there is no code <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>You sir have been a great help. It is definitely appreciated and respected.</p></blockquote><p></p>
[QUOTE="AZSN95SNAKE, post: 11956578, member: 122889"] That's exactly what I got from my research, and if I am not mistaken that info was from you lol. It makes perfect sense. If the IMRC are stuck open wouldn't the PCM add the spark advance? or is that not always the case since I do have a code for it, I figure the PCM would not trigger the spark advance. It has hard to tell if the car is losing power up top. Although I firmly believe it is. I have raced my friends mach 1 various times and I have never lost to him. Since I noticed the car is sluggish, I get the initial hit (roll race) and as soon as I get into upper RPMs he passes me like I'm not moving. I might be able to get a video of this. I'm wondering the same thing; will it add spark advance when they are stuck open or not. Like I said it might not since there is a code for it on. The code might not allow for the spark advance to come through. I may be able to zip tie them and do a datalog. I have an SCT tuner, I just need to download the livewire software and learn how to do it. Unfortunately I can't do this until my summer courses are over (hard pressed on time). In about 1 month. Interesting way of fooling the PCM, haven't seen that one before. Sounds legit to me. Well with the deletes I know that some power is lost down low but it's nothing 4.10s can't cure. And I know that there are a few horses to be gained up top. I have seen the relay circuit in old threads from non other than yourself. It's interesting. I have read good success when using it. I'd have to have my brother in law work that one out, I'm no good at electrical. I concur. It is also think it is a frayed cable issue. I've just never seen IMRC's gunked and stuck open. It is possible I guess. If it's a frayed cable, I'm doing deletes forsure. One of the cables is stuck and won't budge when I tug on it a bit. It is stuck open, so it appears to be pushed in. So I suspect cable or the actuator is dead. Ah yeah a KB would negate any need for IMRC. Also you've saved yourself the headaches. Yes I do need to take the top apart regardless. I will take pictures of it indeed. I'd like to get to the bottom of this. I might just delete them after all. It's actually a pretty good idea but like you said the implementation is flawed. Some V6 and 3vs as well as other vehicles carry the same IMRC idea. Well the tumble port design of the C heads was a much better idea imo. I wish they would have thought of that sooner lol. Than I'd have some low end grunt. Thanks for the tip on the gaskets! I've seen them get ruined using other solvents. I wouldn't try using brake cleaner nor carb cleaner on them. I'll make sure to let them dry up well. About the SCT tunes; I did not know that. I'm going to email BAMA since I get free tunes from them. Since they should have these basic imrc delete tunes it would not be a bad idea to ask them. Although, the 3 tunes that I currently have from them are crap, unless it is just my motor. But if I switch to the street, or performance tune the car idles rough and out of no where a pinging sound pops up for a few seconds. Might just be my car though. The race tune is okay but it has done said pinging as well. I reverted back to the stock tune and the car runs and idles great! The CEL for the o/x has not come on after 2 tanks; which is the only reason I bought the tuner since my mils malfunctioned. They seem to function now though since there is no code :) You sir have been a great help. It is definitely appreciated and respected. [/QUOTE]
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