MY1PATH Posted February 1, 2010 Share Posted February 1, 2010 (edited) Ok so I've had this burnt fusable link for some time and when I replaced it 1 wire burnt again so I replaced again and that same wire went. I followed that wire back to the P.T.C Relay and then to the mixture heater and back to ground. I'm sure There are no other items on this circut. So I put a meeter on the Mixture heater and it was about 1ohm or less is that too little? has it shorted inside the grid? I'm gonna assume that my vehicle has run without it working thru the coldest of the winter with the only side effect being warm up a little richer and a "Stale Chereeos exhuast smell" as one of my co-workers called it lol. anyway I was considering installing a cleanly gutted one for better airflow as I know others have done the same and I'll add a fuel-line heater to help compensate for the lack of mixture heating ablitly its had. What do you guys think? I did some tests and it seems the ECU shuts off the mixture heater once the coolant temp reaches a certain point(aprox 150F). THe rest of the time its just a thick waffle grid stitting below my throttle body. It can't throw any codes because the ECU controls it thru a relay so its in-directly connected. Edited February 14, 2010 by MY1PATH Link to comment Share on other sites More sharing options...
Kingman Posted February 1, 2010 Share Posted February 1, 2010 Looks like it's time to remove it! Link to comment Share on other sites More sharing options...
RedPath88 Posted February 1, 2010 Share Posted February 1, 2010 When I was having a string of issues (long ago) I ended up replacing mine and it did noticeably help with idle conditions when cold. Did it really need it? Probably not, but as I said is did make a small but noticeable difference. And as you pointed out, lots of people have removed the grid from them and ran without. Most people I don't think install any kind of in-line warmer, just deal with a little richer and/or rougher cold running. Guess it comes down to you and your preference. Link to comment Share on other sites More sharing options...
MY1PATH Posted February 1, 2010 Author Share Posted February 1, 2010 lol also the second time it burned the load killed then engine. I guess its time to go. James, did you remove yours? Link to comment Share on other sites More sharing options...
MY1PATH Posted February 14, 2010 Author Share Posted February 14, 2010 (edited) I think I lucked out on this one! I swaped out the bad mixture heater for the Gutted one today and I could plainly see where the Mixture Heater shorted out What I think all you TBI folks should see (z24i & vg30i) Is how extremely brittle the shorted out area becomes. those pieces crumbled off with very gentle finger proding. I'm aware of the severe damage potential they posess once loose I am happy that they did not come loose sooner. Edited February 15, 2010 by MY1PATH Link to comment Share on other sites More sharing options...
Kingman Posted February 14, 2010 Share Posted February 14, 2010 (edited) Holy @!*%! You lucked out bro, good thing that didn't make it's way deeper. I think I'm going to have a peak at mine now... Edited February 14, 2010 by Kingman Link to comment Share on other sites More sharing options...
MY1PATH Posted February 14, 2010 Author Share Posted February 14, 2010 (edited) do not poke untill it is safely out of your manifold. I'm not kidding, I could have knocked those pieces free with a small soft feather Edited February 15, 2010 by MY1PATH Link to comment Share on other sites More sharing options...
Kingman Posted February 15, 2010 Share Posted February 15, 2010 How does it run with the gutted unit? Link to comment Share on other sites More sharing options...
MY1PATH Posted February 15, 2010 Author Share Posted February 15, 2010 (edited) Honestly, I can't really tell the differance. Technically its a performance mod because its opening up the intake but I can't claim any gains yet. Maybe my other engine issues are messing with the result (13 mpg and exhuaust popping) and maybe once I get that sorted out it will grant me a 1/4 mpg but I can't see it doing much more in the way of power. -The concept is good and I can sleep well knowing it don't have a crumbly waffle grid sttting in my intake.- Edited February 15, 2010 by MY1PATH Link to comment Share on other sites More sharing options...
Kingman Posted February 15, 2010 Share Posted February 15, 2010 I thought you fixed the temp sensor that you thought was the problem? Link to comment Share on other sites More sharing options...
MY1PATH Posted February 15, 2010 Author Share Posted February 15, 2010 (edited) I thought you fixed the temp sensor that you thought was the problem? I hoped it was the problem, but it did not solve it 4 me. I can when the ecu reaches closed loop because it cuts power to the heater plug and it does that @ about 140f-150f. I'm still trying to narrow it down but its looking like a dirty valve issue sice I could see intake 3&4 when I took the TBI off. I'll also be tesing for injector leaks 2day. Edited February 15, 2010 by MY1PATH Link to comment Share on other sites More sharing options...
Precise1 Posted February 16, 2010 Share Posted February 16, 2010 What material is that waffle grid thing? B Link to comment Share on other sites More sharing options...
MY1PATH Posted February 17, 2010 Author Share Posted February 17, 2010 I have no idea, maybe some sort semi condutive metal embeded textile, like maybe sivler embeded ceramic? So that when the currnet runs across the embeded particles it it heats up like a resistior would. could be something else tho. Link to comment Share on other sites More sharing options...
Alkorahil Posted February 19, 2010 Share Posted February 19, 2010 I just looked up this part and nearly fell out of my chair at the price.....(List of $358.03) At least it includes new upper and lower gaskets....... Link to comment Share on other sites More sharing options...
RedPath88 Posted February 19, 2010 Share Posted February 19, 2010 I paid no where near that when I bought one... expensive for what it is Yes, but not even close to that. Link to comment Share on other sites More sharing options...
JamesRich Posted February 20, 2010 Share Posted February 20, 2010 (13 mpg and exhuaust popping) Damn I get better than that in my Titan! At least most of the time. James Link to comment Share on other sites More sharing options...
MY1PATH Posted February 20, 2010 Author Share Posted February 20, 2010 (edited) Damn I get better than that in my Titan! At least most of the time. James I think that has been resloved, MPG's are on the way up won't know till I fill again but I think I may be getting better than I used to for my horrible On base driving. You try being forced to drive 15-20mph to and from work everyday with your titan and tell me what your MPGs look like. Edited February 20, 2010 by MY1PATH Link to comment Share on other sites More sharing options...
JamesRich Posted February 21, 2010 Share Posted February 21, 2010 I think that has been resloved, MPG's are on the way up won't know till I fill again but I think I may be getting better than I used to for my horrible On base driving. You try being forced to drive 15-20mph to and from work everyday with your titan and tell me what your MPGs look like. I only live 4 miles from work and its all start and stop driving but I do get to higher speeds than 15 to 20. Most of the dumb Ass drivers around here want to drive 30 and 35 in a 55 mph zone, so my drive to work could be pleasant if it weren't for stupid people. I take my bike most of the time unless its raining. When gas hit $4 a gallon a couple of years ago I bought a motorcycle hoping to get 50 to 60 mpg. But when I walked into the dealer I fell in love with the biggest sport cruiser they had on the floor. A Suzuki boulevard 109. It was just so bad ass looking stock! So my average fuel mileage back and forth to work is 34 mpg, but it's better than the 13 to 14 in the titan. I still have not checked the mileage in the pathfinder, it may be just as bad as yours. My drive is not as bad as yours but I do pass alot. My other average in the titan is 15 and 18 to 19 on the highway and the boulevard averages 37 and 45 to 50 on the highway. These figures show how much I run the hell out of them going to work driving with idiots and cell phones. James Link to comment Share on other sites More sharing options...
frecklecolouredbrain Posted February 25, 2010 Share Posted February 25, 2010 Honestly, I can't really tell the differance. Technically its a performance mod because its opening up the intake but I can't claim any gains yet. Maybe my other engine issues are messing with the result (13 mpg and exhuaust popping) and maybe once I get that sorted out it will grant me a 1/4 mpg but I can't see it doing much more in the way of power. -The concept is good and I can sleep well knowing it don't have a crumbly waffle grid sttting in my intake.- How was your idle when you rplaced the unit. I ask because i just did this mod today and my idle went NUTS. Revving up high, then dropping below 250rpm. it would do this 5 or 6 times before the engine shut down. I managed to fix the shutting down, but the idle is still erattic. The weirdest thing is that it's only while driving around. When I'm in my parking stall, outside, she idles close enoug tho fine for me not to worry. Link to comment Share on other sites More sharing options...
MY1PATH Posted February 25, 2010 Author Share Posted February 25, 2010 How was your idle when you rplaced the unit. I ask because i just did this mod today and my idle went NUTS. Revving up high, then dropping below 250rpm. it would do this 5 or 6 times before the engine shut down. I managed to fix the shutting down, but the idle is still erattic. The weirdest thing is that it's only while driving around. When I'm in my parking stall, outside, she idles close enoug tho fine for me not to worry. I had no change in anthing other than peace of mind. I suspect a vacum problem in your case; Did all your vacum lines go back in the same place? Could you have disturbed an old line enough to crack it? Did you put your fuel lines back In the right postion on the FPR? (one from filter goes on the lower fitting and return line goes on the curved upper fitting.) My truck runs exactly the same as it did before I removed it. Link to comment Share on other sites More sharing options...
frecklecolouredbrain Posted February 26, 2010 Share Posted February 26, 2010 i oly had to take off 2 vac lines. i put them back on wrong and she wouldn't start so i switched them. i didn't have to take anything else off. I'm just gonna put the original back in tomorrow. Link to comment Share on other sites More sharing options...
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