Running rich, could it be the ecu?
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Running rich, could it be the ecu?
I have a 88 rx-7 convertible, with a tII engine but na tranny. Only engine is TII. When i got the car the fuel regulator was leaking causing the car to flood. I got that changed and it starts up great everytime......
The problem now is that i am suspisious it is running rich, i get horrable gas milage and it just feels like its rich when it idles. Also when the engine is cold and you start it up, (when rpm goes to 3K) white smoke comes out the back that smells like gas...only until the rpm goes back to normal thoguh.
SO I was wondering if that could be caused by the n/a ecu, since they never changed to a TII tranny, i'm assuming they never changed to a TII ecu either..... and i was wondering what the difference is between the two?
Is it really bad to drive around with a TII engine but an n/a ecu?
Once I get this problem fixed my car will be 96% fully functional.
The problem now is that i am suspisious it is running rich, i get horrable gas milage and it just feels like its rich when it idles. Also when the engine is cold and you start it up, (when rpm goes to 3K) white smoke comes out the back that smells like gas...only until the rpm goes back to normal thoguh.
SO I was wondering if that could be caused by the n/a ecu, since they never changed to a TII tranny, i'm assuming they never changed to a TII ecu either..... and i was wondering what the difference is between the two?
Is it really bad to drive around with a TII engine but an n/a ecu?
Once I get this problem fixed my car will be 96% fully functional.
Last edited by Peyman; 09-20-05 at 05:24 PM.
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do you have any mods on the car? the stock ecu is programmed pretty rich from the factory. Check the ecu for error codes. Try to see if you have any codes related to sensors/ emisions....etc. how bad of gas mileage are we talking? i get about 13 city and about 20 highway.
#3
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Well you are just begging to fling apex seals out your exhaust aint you.
You are running rich b/c of the N/A AFM the spring is to light and will raw gas you out of your own car.
You got to change the ECU to a TII or get a fuel controller you also need to use a TII pressure sensor. For 1 your ECU does not pull back timing on boost and 2 the Pressure sensor has no clue your in boost so it still couldn’t if you even had a TII ECU 3 the NA ECU is not setup for turbo 550CC injector fuel delivery.
Hope your tranny holds I have no doubts on the rear end for moderate power but the tranny will pop fairly easy.
You are running rich b/c of the N/A AFM the spring is to light and will raw gas you out of your own car.
You got to change the ECU to a TII or get a fuel controller you also need to use a TII pressure sensor. For 1 your ECU does not pull back timing on boost and 2 the Pressure sensor has no clue your in boost so it still couldn’t if you even had a TII ECU 3 the NA ECU is not setup for turbo 550CC injector fuel delivery.
Hope your tranny holds I have no doubts on the rear end for moderate power but the tranny will pop fairly easy.
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Originally Posted by iceblue
Well you are just begging to fling apex seals out your exhaust aint you.
You are running rich b/c of the N/A AFM the spring is to light and will raw gas you out of your own car.
You got to change the ECU to a TII or get a fuel controller you also need to use a TII pressure sensor. For 1 your ECU does not pull back timing on boost and 2 the Pressure sensor has no clue your in boost so it still couldn’t if you even had a TII ECU 3 the NA ECU is not setup for turbo 550CC injector fuel delivery.
Hope your tranny holds I have no doubts on the rear end for moderate power but the tranny will pop fairly easy.
You are running rich b/c of the N/A AFM the spring is to light and will raw gas you out of your own car.
You got to change the ECU to a TII or get a fuel controller you also need to use a TII pressure sensor. For 1 your ECU does not pull back timing on boost and 2 the Pressure sensor has no clue your in boost so it still couldn’t if you even had a TII ECU 3 the NA ECU is not setup for turbo 550CC injector fuel delivery.
Hope your tranny holds I have no doubts on the rear end for moderate power but the tranny will pop fairly easy.
I just got the fuel regulator changed on it for the tII of course, is the pressure sesor the same thing as a fuel regulator? what exactly is a pressure sensor?
Is there a way for me to tell if my car has a TII or n/a ecu?
I'm changing clutch tomorrow....please let me know so i can get this baby running right!
#5
Passing life by
A far as the BOV go over all your VAC lines and what is the VAC source of the BOV?
ECU yes pull the passenger carpet back and the kick panel and tells us the numbers on the ECU
The PS is a little square box with a 4wire clip in the bottom with a vacuumed line going to it on the passenger fender well. Telling them apart I dunno.
And stay in moderate HP levels or stock until you can afford to go with the TII trany.
ECU yes pull the passenger carpet back and the kick panel and tells us the numbers on the ECU
The PS is a little square box with a 4wire clip in the bottom with a vacuumed line going to it on the passenger fender well. Telling them apart I dunno.
And stay in moderate HP levels or stock until you can afford to go with the TII trany.
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Originally Posted by iceblue
A far as the BOV go over all your VAC lines and what is the VAC source of the BOV?
ECU yes pull the passenger carpet back and the kick panel and tells us the numbers on the ECU
The PS is a little square box with a 4wire clip in the bottom with a vacuumed line going to it on the passenger fender well. Telling them apart I dunno.
And stay in moderate HP levels or stock until you can afford to go with the TII trany.
ECU yes pull the passenger carpet back and the kick panel and tells us the numbers on the ECU
The PS is a little square box with a 4wire clip in the bottom with a vacuumed line going to it on the passenger fender well. Telling them apart I dunno.
And stay in moderate HP levels or stock until you can afford to go with the TII trany.
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#8
Passing life by
Thats ia 1988 vert ECU and will work fine. The N338 is the only valid N/A ECU applicable. I look over the fact you had a 88 vert sorry.
I do not know how to tell the PS's apart sorry maybe someone like IceMark or HAILERS will chime in.
As far as the BOV stuff shoot us a pic.
I do not know how to tell the PS's apart sorry maybe someone like IceMark or HAILERS will chime in.
As far as the BOV stuff shoot us a pic.
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Originally Posted by iceblue
Thats ia 1988 vert ECU and will work fine. The N338 is the only valid N/A ECU applicable. I look over the fact you had a 88 vert sorry.
I do not know how to tell the PS's apart sorry maybe someone like IceMark or HAILERS will chime in.
As far as the BOV stuff shoot us a pic.
I do not know how to tell the PS's apart sorry maybe someone like IceMark or HAILERS will chime in.
As far as the BOV stuff shoot us a pic.
I will read the part number on the ps, and i will take pics of the bov as soon as i get home!
#10
Originally Posted by iceblue
Hope your tranny holds I have no doubts on the rear end for moderate power but the tranny will pop fairly easy.
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floodin?
replaced the fuel reg...just a thought..sticky fuel injectors ..a little crap in them throws a wrench into the machine..i'm thinkin they are sticking and giving you excess fuel ..get some feedback on this..cost nothing to ask..would be payin the piper if you let the situation get out of hand...good luck always up to a pm reply if i'm right or an earfull if i'm wrong..help each other right?
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