ej6swap Posted August 31, 2009 Share Posted August 31, 2009 my 98 civic hatch with a b18a swap runs fine but when i try to rev it higher it just bogs at 3000 rpm and drops then rises up again my brotther and i have already tried checking the map sensor to the tps sensor and the ecu. i even went as far as changing three tps sensors and taking out my whole engine harness to check and see if there is any cuts on the harness but there was none either short on the money so don't want to spend anymore for miscellanous parts need to know asap. if anyone can help me with this that would be great. Link to comment Share on other sites More sharing options...
airjordan223 Posted August 31, 2009 Share Posted August 31, 2009 are you sure youre using the right ecu Link to comment Share on other sites More sharing options...
BrIaN EG2 Posted August 31, 2009 Share Posted August 31, 2009 it shouldnt matter about the ECU colter.. if he used his old ecu it would tell the engine that his redline was the same as the old engine... i rode around on my D15 ecu for a few minutes with the GSR.. then i put in the chipped P28 and it ran alot better, higher revvs FTW, lol.. im not sure what your problem is though.. i didnt have any with my swap.. is your throttle cable tight..? that wouldnt make you bog but it would cause you not to pass 3k rpm Link to comment Share on other sites More sharing options...
ej6swap Posted August 31, 2009 Author Share Posted August 31, 2009 are you sure youre using the right ecu i tried using my dx ecu and the ls and my brothers b16a3 ecu and only the dx responded the best because if i rev slowly it can go up to 7000 rpm but the ls and the b16 ecu won't even do that. it shouldnt matter about the ECU colter.. if he used his old ecu it would tell the engine that his redline was the same as the old engine... i rode around on my D15 ecu for a few minutes with the GSR.. then i put in the chipped P28 and it ran alot better, higher revvs FTW, lol.. im not sure what your problem is though.. i didnt have any with my swap.. is your throttle cable tight..? that wouldnt make you bog but it would cause you not to pass 3k rpm idk cuz my brother switched the throttle cable to the ls one i think it should be tight enough though. Link to comment Share on other sites More sharing options...
BrIaN EG2 Posted August 31, 2009 Share Posted August 31, 2009 so youre using a LS throttle cable on a B16? Link to comment Share on other sites More sharing options...
ej6swap Posted August 31, 2009 Author Share Posted August 31, 2009 so youre using a LS throttle cable on a B16? no im using it on my ls b18a motor Link to comment Share on other sites More sharing options...
BrIaN EG2 Posted August 31, 2009 Share Posted August 31, 2009 oh, i read your OP quick and thought you said you had a b16a... hmm well.. i have no clue Link to comment Share on other sites More sharing options...
airjordan223 Posted September 7, 2009 Share Posted September 7, 2009 did you find a solution to this? Link to comment Share on other sites More sharing options...
Tko Posted September 7, 2009 Share Posted September 7, 2009 I bet it was map or ecu either way he hasn't posted in here In a few days so my guess is he fixed it and is gone. Link to comment Share on other sites More sharing options...
ej6swap Posted September 15, 2009 Author Share Posted September 15, 2009 I bet it was map or ecu either way he hasn't posted in here In a few days so my guess is he fixed it and is gone. it is not a map or ecu problem because i had autozone did a code read on it and they said that what came up was o2 sensor and ignition misfire isssue. but i still cant find the issue to it cuz usually when this happens it is either the spark plugs, spark plug wires or either the fuel injectors right and i have checked all these possiblities since bbefore i got the car started i got brancd new spark plugs and switch spark plug wires from a running ls motor and switched different working used injectors in so what could be the problem.. i thought it would be the fuel pump and i changed my d16y7 fuel pump with a b16 fuel pump as well so what the heck could be wrong now im pissed off already with my swap Link to comment Share on other sites More sharing options...
BrIaN EG2 Posted September 15, 2009 Share Posted September 15, 2009 i say you needz tune Link to comment Share on other sites More sharing options...
ej6swap Posted September 15, 2009 Author Share Posted September 15, 2009 i say you needz tune thats what im thinking of last cuz after autozone i changed my spark plug wires and then used a code reader from a friend and it told me something different now. i got a code for an idle control valve malfunction and speed sensor malfunction. im thinking why would my speed sensor malfunction because my speedomoter has been going up and working fine same with my rpm. so im guessing to change my idle control valve from my brothers ls sense he just took his ls out of his civic. if not any of these then i think i might need a 96 to 98 ex or hx harness then last but not least to tune it. Link to comment Share on other sites More sharing options...
BrIaN EG2 Posted September 15, 2009 Share Posted September 15, 2009 see if the person that tunes you car can clear all your codes for you.. Link to comment Share on other sites More sharing options...
DelSolSweetie Posted September 19, 2009 Share Posted September 19, 2009 did this kid plug everything up right?? because when we did my swap someone put the wrong sensor on the IAC and it kept tellin me it was bad and it just wasnt plugged up Link to comment Share on other sites More sharing options...
ej6swap Posted September 24, 2009 Author Share Posted September 24, 2009 thats what my brother and i think it is but we dont know exactly which color code from the harness would be right for the idle control valve from my dx engine harness. because it was running fine in my brothers 2000 hx coupe before he took it out and he decided to put a 98 ls motor instead of the 92 ls and we copied his wiring from his ls swap coupe into my dx hatch. i know there is a different in years and color code. Link to comment Share on other sites More sharing options...
HONDA CRX 88 SI Posted September 25, 2009 Share Posted September 25, 2009 Naw its gonna most likely be something in the wiring at your distributor yall did you check that good Link to comment Share on other sites More sharing options...
ej6swap Posted September 26, 2009 Author Share Posted September 26, 2009 Naw its gonna most likely be something in the wiring at your distributor yall did you check that good it can't be the distributor because first i did use an obd1 tapped to obd2 but then i was able to get my hands on an obd2 ls distributor and replaced it and i did not change or tap any of the wires on my harness to the dizzy. Link to comment Share on other sites More sharing options...
ej6swap Posted September 26, 2009 Author Share Posted September 26, 2009 oohh and i also have another question as to why my enigne coolant is running out so fast because i filled it up to full but when i drive it to work and just come back it drops to about halfway i believe it could be due to my idle air control valve but i already replaced that so what could cause that. it does still read that i need a new idle air control valve on the code reader. so then i have come to a conclusion as i have wired up my harness wrong somewhow so does anyone know the wire color for a dx harness to plug in right onto a b18a i need my car to run right asap. Link to comment Share on other sites More sharing options...
DelSolSweetie Posted September 26, 2009 Share Posted September 26, 2009 the IAC wouldnt be making your coolant disappear.... no wiring that you could do would make coolant disappear you probably have one of the following 1)leaky hose 2)leaky radiator cap 3)busted radiator 4)head gasket issue Link to comment Share on other sites More sharing options...
Tko Posted September 27, 2009 Share Posted September 27, 2009 MAGIC! Do you see any leaking fluid? Any smoke? Hows your oil look? Did you make sure you used clamps when you installed hose lines? Link to comment Share on other sites More sharing options...
ej6swap Posted September 27, 2009 Author Share Posted September 27, 2009 MAGIC!Do you see any leaking fluid? Any smoke? Hows your oil look? Did you make sure you used clamps when you installed hose lines? did all of the following Link to comment Share on other sites More sharing options...
ej6swap Posted September 27, 2009 Author Share Posted September 27, 2009 the IAC wouldnt be making your coolant disappear.... no wiring that you could do would make coolant disappear you probably have one of the following 1)leaky hose 2)leaky radiator cap 3)busted radiator 4)head gasket issue no leaking hose, no leak on radiator cap, my radiator is still in really good condition, but could probably be head gasket issue have not check that yet but my cold to hot temp. does not go all the way too hot, it just stays like normal temp, i have had a head gasket issue on my other cars before and i know it can't be that. Link to comment Share on other sites More sharing options...
DelSolSweetie Posted September 28, 2009 Share Posted September 28, 2009 well radiator fluid doesn't just disappear without a reason so if you cant find anything you probably missed something and should take it to a mechanic Link to comment Share on other sites More sharing options...
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