88 rx7 t2 running rich, and hesitation
04-30-17, 08:43 PM
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88 rx7 t2 running rich, and hesitation
Hey all I've got an 88 rx7 turbo 2, the guy I got it from put a 3inch exhaust from the turbo back, and a massive front mount intercooler, and a lot of emissions deleted, now I've gotten it to run but it has bad hesitation in the throttle taking forever to rev and the car is running really rich, and it also won't rev past 2500 when you get up to 2500 it's backfires, I'm looking for any help please oh and new fuel pump
05-02-17, 02:24 PM
#3
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so where can I go to find a tuned ECU or what program should I run
05-02-17, 04:56 PM
#4
do a compression test first and make sure the engine isn't blown
ECU is completely up to you and your budget, there are MANY options out there, the biggest factor to consider is if you can't tune it, find out who near you is a tuner, and what ECU they tune, and then go for that ECU
ECU is completely up to you and your budget, there are MANY options out there, the biggest factor to consider is if you can't tune it, find out who near you is a tuner, and what ECU they tune, and then go for that ECU
05-02-17, 05:46 PM
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do a compression test first and make sure the engine isn't blown
ECU is completely up to you and your budget, there are MANY options out there, the biggest factor to consider is if you can't tune it, find out who near you is a tuner, and what ECU they tune, and then go for that ECU
ECU is completely up to you and your budget, there are MANY options out there, the biggest factor to consider is if you can't tune it, find out who near you is a tuner, and what ECU they tune, and then go for that ECU
05-07-17, 10:10 PM
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lol I live in North Dakota I think the closest tuner is Chicago, but I will do a compression check, I did however notice that the previous owner has vacuum lines allllll screwed up I found a good thread on removing the rats nest and finding where all these vacuum lines go, then a new fuel filter, new plugs, oil change, compression check and see where I'm at
05-08-17, 07:47 AM
#7
no, its your ECU, the stock ECU is NOT made to run ANYTHING ELSE OTHER THAN STOCK, if you keep trying to run it into boost, your going to blow the engine, and then your really going to be pissed.
STOP trying to run the car, do what I suggested above, or blow the engine and sell it to someone for dirt cheap because they have to replace the engine because someone blew the engine
STOP trying to run the car, do what I suggested above, or blow the engine and sell it to someone for dirt cheap because they have to replace the engine because someone blew the engine
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05-09-17, 10:19 AM
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no, its your ECU, the stock ECU is NOT made to run ANYTHING ELSE OTHER THAN STOCK, if you keep trying to run it into boost, your going to blow the engine, and then your really going to be pissed.
STOP trying to run the car, do what I suggested above, or blow the engine and sell it to someone for dirt cheap because they have to replace the engine because someone blew the engine
STOP trying to run the car, do what I suggested above, or blow the engine and sell it to someone for dirt cheap because they have to replace the engine because someone blew the engine
05-09-17, 08:23 PM
#9
I wasn't trying to treat you like a young punk kid, but being as I said not to run it 3 times forewarning you that you could blow the engine, but you continued to try and run it anyways, what do you usually have to do with kids?
I could've been a real **** and not told you to not run it, and when you shot an apex seal out've the exhaust because it detonated so hard because its running lean (which is still possible that you did) then you would've been MORE pissed at me
These cars are MY dream car as well (Other than to drive a McLaren F1, just ONCE lol), and I may only own a N/A. But I have read SO much on these forums about the turbos, that I know once you do practically ANY mod for more power, that the stock ECU will not support it, and the engine will die.
These engines are not like your Integra, piston engines can take detonation ALOT better than a rotary because they don't have brittle apex seals. Apex seals are tough for what they do, but are also very brittle for what they do
I could've been a real **** and not told you to not run it, and when you shot an apex seal out've the exhaust because it detonated so hard because its running lean (which is still possible that you did) then you would've been MORE pissed at me
These cars are MY dream car as well (Other than to drive a McLaren F1, just ONCE lol), and I may only own a N/A. But I have read SO much on these forums about the turbos, that I know once you do practically ANY mod for more power, that the stock ECU will not support it, and the engine will die.
These engines are not like your Integra, piston engines can take detonation ALOT better than a rotary because they don't have brittle apex seals. Apex seals are tough for what they do, but are also very brittle for what they do
05-09-17, 09:04 PM
#10
Originally Posted by James Schlett
ok first I want to point out that I'm no young little punk kid running off of mommy and daddy money have I owned an rx7? No but that's why I'm here is to learn and coming at me and talking to me like I'm some kid missed me off, and originally I ran through and looked for days at all the issues that I am experiencing with my car and you are the first to suggest ecu and on another note I went from having a 94 Integra built ls, on 14 lbs boost and I put 10 years into that car and I traded straight up for this rx7 cause it's one of my dream cars and I have NO problem learning to rebuild or even replace the engine if it comes down to it, so suggesting that I would give up on my DREAM car is ******* insulting I was hoping for encouragement and some help not ridicule and assumption
The car has no business with any of the mods you listed. As already mentioned, the car can't support the mods it's trying to, nor is it going to make any more power than a stock car.
The guy who owned the car previously started backwards. A big intercooler on a stock turbo is going to do nothing but create a pressure drop and several potential vacuum leak. The exhaust is going to free up back pressure and cause boost to rise above stock levels. The stock 30 year old ECU is going to fuel cut, and you're going to end up with a paperweight. It doesn't matter if you think you can rebuild the engine, do you want to blow it up just for the sake of not listening?
Do yourself a favor and at minimum, go into the classified section and buy a piece of junk called the RTEK. This is a modified stock ECU which is programmable via a palm pilot. It's EXTREMELY limited, and a serious pain in the ***. No professional will touch the thing, but you can tinker with it and tune the car for the higher boost pressure due to the exhaust. Unless you have a ton of money to drop, then buy yourself a bigger turbo, injectors, standalone ECU, fuel pump, etc.
05-09-17, 09:06 PM
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I wasn't trying to treat you like a young punk kid, but being as I said not to run it 3 times forewarning you that you could blow the engine, but you continued to try and run it anyways, what do you usually have to do with kids?
I could've been a real **** and not told you to not run it, and when you shot an apex seal out've the exhaust because it detonated so hard because its running lean (which is still possible that you did) then you would've been MORE pissed at me
These cars are MY dream car as well (Other than to drive a McLaren F1, just ONCE lol), and I may only own a N/A. But I have read SO much on these forums about the turbos, that I know once you do practically ANY mod for more power, that the stock ECU will not support it, and the engine will die.
These engines are not like your Integra, piston engines can take detonation ALOT better than a rotary because they don't have brittle apex seals. Apex seals are tough for what they do, but are also very brittle for what they do
I could've been a real **** and not told you to not run it, and when you shot an apex seal out've the exhaust because it detonated so hard because its running lean (which is still possible that you did) then you would've been MORE pissed at me
These cars are MY dream car as well (Other than to drive a McLaren F1, just ONCE lol), and I may only own a N/A. But I have read SO much on these forums about the turbos, that I know once you do practically ANY mod for more power, that the stock ECU will not support it, and the engine will die.
These engines are not like your Integra, piston engines can take detonation ALOT better than a rotary because they don't have brittle apex seals. Apex seals are tough for what they do, but are also very brittle for what they do
05-09-17, 10:36 PM
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Take it down a few notches, James. No one called you a kid, nor did they insinuate or belittle you. Though you may not be young, you still can learn something, and you seem to not be listening.
The car has no business with any of the mods you listed. As already mentioned, the car can't support the mods it's trying to, nor is it going to make any more power than a stock car.
The guy who owned the car previously started backwards. A big intercooler on a stock turbo is going to do nothing but create a pressure drop and several potential vacuum leak. The exhaust is going to free up back pressure and cause boost to rise above stock levels. The stock 30 year old ECU is going to fuel cut, and you're going to end up with a paperweight. It doesn't matter if you think you can rebuild the engine, do you want to blow it up just for the sake of not listening?
Do yourself a favor and at minimum, go into the classified section and buy a piece of junk called the RTEK. This is a modified stock ECU which is programmable via a palm pilot. It's EXTREMELY limited, and a serious pain in the ***. No professional will touch the thing, but you can tinker with it and tune the car for the higher boost pressure due to the exhaust. Unless you have a ton of money to drop, then buy yourself a bigger turbo, injectors, standalone ECU, fuel pump, etc.
The car has no business with any of the mods you listed. As already mentioned, the car can't support the mods it's trying to, nor is it going to make any more power than a stock car.
The guy who owned the car previously started backwards. A big intercooler on a stock turbo is going to do nothing but create a pressure drop and several potential vacuum leak. The exhaust is going to free up back pressure and cause boost to rise above stock levels. The stock 30 year old ECU is going to fuel cut, and you're going to end up with a paperweight. It doesn't matter if you think you can rebuild the engine, do you want to blow it up just for the sake of not listening?
Do yourself a favor and at minimum, go into the classified section and buy a piece of junk called the RTEK. This is a modified stock ECU which is programmable via a palm pilot. It's EXTREMELY limited, and a serious pain in the ***. No professional will touch the thing, but you can tinker with it and tune the car for the higher boost pressure due to the exhaust. Unless you have a ton of money to drop, then buy yourself a bigger turbo, injectors, standalone ECU, fuel pump, etc.
05-09-17, 11:08 PM
#13
While it's true that your mods are potentially bad news and may get you a blown engine soon, first figure out why you're running rich. How does your fuel pressure compare to the FSM diagnostic values? Presumably a non-stock fuel pump was installed, which will overwhelm the FPR and screw-up your A/F ratio. Install a stock fuel pump or break-out your wallet.
05-10-17, 07:50 AM
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injectors are stock for sure, fuel pump is stock I put it in myself, and compression I'm gonna get tonight after work I had to get a new compression gauge i will post results tonight
05-10-17, 01:29 PM
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05-11-17, 01:25 PM
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yep not worried at all though just got a hefty raise, the wife is ok with it, so I guess my question is where are or what are some of the best websites to get rebuild kits or high quality stuff and some options for after market ecu that are user friendly
05-11-17, 09:36 PM
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yep not worried about driving it I'll start the tear down tomorrow
05-11-17, 09:37 PM
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