I want to know if chipping p28ecu can mess with my motor?someone with experience help
Hi everyone im new here so i dont know if im in the right section...
I have a 97 civic ex 4 door, D16A block D16y8 head ( its a ex so its y8 build)
i have a p2p ecu so its giving me a c.e.l p0325 for knock sensor after alot of research i found out d16A are obd 1 and dont have knock sensor so i to get through this im going to get a obd 1 p28 ecu..
i want to also chip the new p28 ecu, i saw some guy next to me does it for 50$ idk if thats a good price but he says he can reprogram everything.
first thing i wanna do that he said he can take off is the speed limiter from the ecu ( how much is the limit by the way 125mph?), the knock sensor if i have too obviously,
i also want to customize what he said he can adjust is when the vtec kicks in , i was thinking about putting it at around 4-4,500 rpm to kick in? i dont know if thats safe or it'll mess with my motor thats why im asking on the forum maybe someone has some experience with this?
also he said he adjust the rev limiter for example my car's redline on the gauge is 7,000 or 7,500 he said he can raise it to like 9,000 i was thinking about doing it to 8,500 or so ,but thats the main reason i wanted to ask the forums..
will that affect my cars perfomance like for bad if i raise the rev limiter ( thats the red line right) can my car handle 8,500 revs or will it blow out ?even tho the ecu lets it go to 8,500 will the engine support that or will it blow out??
also if i raise the rpms to let me accelarate after 7,000 will it decrease my accelaration on the lower rpms like 3,000 will acclerate slow till i get to the high rpms?
im not sure at all it sounds like a good idea and could make my car fast but i want my car to be safe i dont want the engine to blow out or it to lose accelartion on low rpms?
I dont think adjusting the vtec to kick in at 4,500 instead of the standard 5,500 will hurt the car but im not sure ??
I know someone on the forums has had thier ecus chipped and can help me from experience so please if you can any advice would help..
Thanks in advance to anyone that looks at this thread!!
I have a 97 civic ex 4 door, D16A block D16y8 head ( its a ex so its y8 build)
i have a p2p ecu so its giving me a c.e.l p0325 for knock sensor after alot of research i found out d16A are obd 1 and dont have knock sensor so i to get through this im going to get a obd 1 p28 ecu..
i want to also chip the new p28 ecu, i saw some guy next to me does it for 50$ idk if thats a good price but he says he can reprogram everything.
first thing i wanna do that he said he can take off is the speed limiter from the ecu ( how much is the limit by the way 125mph?), the knock sensor if i have too obviously,
i also want to customize what he said he can adjust is when the vtec kicks in , i was thinking about putting it at around 4-4,500 rpm to kick in? i dont know if thats safe or it'll mess with my motor thats why im asking on the forum maybe someone has some experience with this?
also he said he adjust the rev limiter for example my car's redline on the gauge is 7,000 or 7,500 he said he can raise it to like 9,000 i was thinking about doing it to 8,500 or so ,but thats the main reason i wanted to ask the forums..
will that affect my cars perfomance like for bad if i raise the rev limiter ( thats the red line right) can my car handle 8,500 revs or will it blow out ?even tho the ecu lets it go to 8,500 will the engine support that or will it blow out??
also if i raise the rpms to let me accelarate after 7,000 will it decrease my accelaration on the lower rpms like 3,000 will acclerate slow till i get to the high rpms?
im not sure at all it sounds like a good idea and could make my car fast but i want my car to be safe i dont want the engine to blow out or it to lose accelartion on low rpms?
I dont think adjusting the vtec to kick in at 4,500 instead of the standard 5,500 will hurt the car but im not sure ??
I know someone on the forums has had thier ecus chipped and can help me from experience so please if you can any advice would help..
Thanks in advance to anyone that looks at this thread!!
just randomly setting vtec and rev limiters is what ***** up engines. leave the damn thing alone if you dont know what you're doing or put the thing on a dyno and have a professional do it.
ok yea im not gonna chip it cuz i have no idea about that ill probably **** up the ecu , but someone that does know how to chip it is telling me what he can do to the ecu but im just asking if it would **** up my engine from what your saying it would so im keeping that in mind,,
also doood maybe you know, ive been looking at other forums and they say you cant just plug and play an obd 1 p28 ( im not talking about the connections i knowi need a jumper harness) on a obd 2 car like mine that you have to change the base map , and that you have to chip it for that?
Do you know anything about that?
also doood maybe you know, ive been looking at other forums and they say you cant just plug and play an obd 1 p28 ( im not talking about the connections i knowi need a jumper harness) on a obd 2 car like mine that you have to change the base map , and that you have to chip it for that?
Do you know anything about that?
Tuning's not just a shot-in-the-dark thing. You need a professional tuner. Or if you feel competent enough you can DIY it but you need to invest in some monitoring equipment -- you can't just do it blind.
Yea i know i think i put it in the beginning post im not doing the chipping ,, someone that knows how to do it is going to do it for 50$ idk if thats a good price but thats my starting point i guess
Im not going to chip it my self cuz i have no idea how to,, i just want to know if he chips it to what i tell him if its going to mess up my motor..
THE OTHER guy knows how to chip it and will be doing the chip im just researching first what would happen
just wanna clear it up
Im not going to chip it my self cuz i have no idea how to,, i just want to know if he chips it to what i tell him if its going to mess up my motor..
THE OTHER guy knows how to chip it and will be doing the chip im just researching first what would happen
just wanna clear it up
regardless, he's not tuning it to your specific engine and mods. he's guessing and burning it on a chip then installing it in your ecu. this is not the right way to do it.
read this: http://www.phearable.net/tech/efibeginnerguide.html
it'll give you a basic idea of what's going on
it'll give you a basic idea of what's going on
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There are only a few people I'd trust enough to make a basemap that I'd run it for any length of time, and even then running untuned on a frankenstein motor just seems like a bad idea.
awesome!!! Thanks dood!
I dont think that guy that does it for 50$ will be doing it as properly as pherable.net hes gonna be doing it like you said, i didnt know how it worked thats y i wanted to ask the forums,,'
Man i was gonna go buy it yesterday too hes selling a p28 with a chip and hell reprogram it for me for 125$ !!
Man they sell virgin p28s for more than that lol
so if i get a virgin p28 a obd2a to obd 1 jumper harness it should work great right?
cuz like i said i see threads that say you have to change the base map ( chipping it the right way pherable.net) to get it to function properly?do you know if i would have to do that?
I dont think that guy that does it for 50$ will be doing it as properly as pherable.net hes gonna be doing it like you said, i didnt know how it worked thats y i wanted to ask the forums,,'
Man i was gonna go buy it yesterday too hes selling a p28 with a chip and hell reprogram it for me for 125$ !!
Man they sell virgin p28s for more than that lol
so if i get a virgin p28 a obd2a to obd 1 jumper harness it should work great right?
cuz like i said i see threads that say you have to change the base map ( chipping it the right way pherable.net) to get it to function properly?do you know if i would have to do that?
yea i didnt know what was the process of chipping it correctly, this guy is on craigslist so im definatley not letting him chip my ecu any more ..
can you help me with the question i asked doood?
ive been looking at other forums and they say you cant just plug and play an obd 1 p28 ( im not talking about the connections i knowi need a jumper harness) on a obd 2 car like mine that you have to change the base map , and that you have to chip it for that?
Do you know anything about that?
can you help me with the question i asked doood?
ive been looking at other forums and they say you cant just plug and play an obd 1 p28 ( im not talking about the connections i knowi need a jumper harness) on a obd 2 car like mine that you have to change the base map , and that you have to chip it for that?
Do you know anything about that?
I know almost nothing about D-series, let alone tuning them. But I would hazard a guess that there is not a factory basemap appropriate for your engine, since it's a block-head combination that Honda did not design. Maybe somebody more knowledgeable will chime in.
But if you're serious about buying things I'm sure that some of the forum sponsors would be happy to answer your questions.
But if you're serious about buying things I'm sure that some of the forum sponsors would be happy to answer your questions.
ok thanks man well i got a rebuilt engine 4 months ago i ordered a d16y8 and they brought me the y8 head with the d16A block,
which i reserched its better its JDM has 3 more hp than the z6 and .2 compression more so i didnt complain lol
and everything else in my car is stock its running the stock p2p ecu so i dont think the different block really matters right? my car runs good just some idle problems with the rpms going up and down but i gotta look for a vacuum leak , might have to replace my throttle body to take car of that..
but pretty much its a stock civic ex y8 build with a d16A block , some dc headers, and aem intake nothing that should affect the stock base map right?
THanks for your help either way man
which i reserched its better its JDM has 3 more hp than the z6 and .2 compression more so i didnt complain lol
and everything else in my car is stock its running the stock p2p ecu so i dont think the different block really matters right? my car runs good just some idle problems with the rpms going up and down but i gotta look for a vacuum leak , might have to replace my throttle body to take car of that..
but pretty much its a stock civic ex y8 build with a d16A block , some dc headers, and aem intake nothing that should affect the stock base map right?
THanks for your help either way man
I know almost nothing about D-series, let alone tuning them. But I would hazard a guess that there is not a factory basemap appropriate for your engine, since it's a block-head combination that Honda did not design. Maybe somebody more knowledgeable will chime in.
But if you're serious about buying things I'm sure that some of the forum sponsors would be happy to answer your questions.
But if you're serious about buying things I'm sure that some of the forum sponsors would be happy to answer your questions.
If your CEL is due to the Knock Sensor, pick up P28 and jumper and just drive it until you do something that warrants an upgrade. Also...replacing your throttle body will not get rid of your idling problem.
i dont know man i reserached it on google its hard to find info but i found that out,, its a straight jdm i know that so it makes sense that they have more compression and power even if its a little bit more but i cant confirm it .. d16A's are so ******* rare its hard to find any info on it hard *** **** to find out it didnt have the knock sensor thats y i cant confirm it..
what i can confirm is that d16y8 blocks are garbage! i see so many forums and and results on the web of people complain that they mess up so fast, one major problem that i see on every forum is the spun bearings
everything i read about the d16A is positive besides the simple fact that its JDM not USDM
So yea i am pretty happy with my block lol
yea im already picking up a p28 obd 1 gotta wait for the harness and thats it ,,got a p0141 code too which is the rear o2 sensor gotta change that ut oem deso's go for around a 100 bucks ***!!
n yea its most likely not the throttle body causing it but the throttle control on the throttle body gets a little stuck sometime leaving my car high reved so i gotta change that, the idle problem is most likely a air leak somewhere
what i can confirm is that d16y8 blocks are garbage! i see so many forums and and results on the web of people complain that they mess up so fast, one major problem that i see on every forum is the spun bearings
everything i read about the d16A is positive besides the simple fact that its JDM not USDM
So yea i am pretty happy with my block lol
yea im already picking up a p28 obd 1 gotta wait for the harness and thats it ,,got a p0141 code too which is the rear o2 sensor gotta change that ut oem deso's go for around a 100 bucks ***!!
n yea its most likely not the throttle body causing it but the throttle control on the throttle body gets a little stuck sometime leaving my car high reved so i gotta change that, the idle problem is most likely a air leak somewhere
If your talking bout a straight D16A, its 9.3comp is .3 less than a Y8 block that you originally ordered. Not a laughing matter IMO.
If your CEL is due to the Knock Sensor, pick up P28 and jumper and just drive it until you do something that warrants an upgrade. Also...replacing your throttle body will not get rid of your idling problem.
If your CEL is due to the Knock Sensor, pick up P28 and jumper and just drive it until you do something that warrants an upgrade. Also...replacing your throttle body will not get rid of your idling problem.
Originally Posted by doood
read this: http://www.phearable.net/tech/efibeginnerguide.html
it'll give you a basic idea of what's going on
it'll give you a basic idea of what's going on
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nonpoint986
Honda Civic / Del Sol (1992 - 2000)
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Aug 31, 2009 04:37 PM




