air/fuel ratio readings under boost
02-01-2005, 09:27 AM
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air/fuel ratio readings under boost
well, my question now is, what is the air fuel guage supposed to read while undergoing boost? its a narrowband autometer boost guage. while idling, it shows one spec of red and the rest is orange. while boosting, goes to the upper part of the orange(stoich). is this normal? lately ive been informed that the guage must read a little on the rich side while in boost. all i am running for management is a 12:1 fmu and a walbro 255l fuel pump. i was wondering why the car is frequently jerking. I know it cant be a boost leak because the boost guage reads up to 8psi(wastegate spring setting). maybe this is my problem. if it is, how can i fix it? i cant afford hondata or anything like that right now, so please tell me something affordable. thanks
02-01-2005, 09:49 AM
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Re: air/fuel ratio readings under boost (lazyeyez)
It can read pretty much anything since its a narrowband, usally they read rich.. You need to get a wideband to do any tuning with it..
02-01-2005, 10:35 AM
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Re: air/fuel ratio readings under boost (lazyeyez)
what its really telling you is that your gonna need to get a wideband if you want to read anything.
02-01-2005, 11:00 AM
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The autometer af gauge is nothing more than a 0-1vdc volt gauge. If the car is on the rich side on boost, it should be very near 1volt, or all the way to the green leds. But like everyone says..don't even think of using that gauge as anything but a light show.
The only good use it has (that I use it for) is knowing whether the ECU is in open or closed loop.
The only good use it has (that I use it for) is knowing whether the ECU is in open or closed loop.
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02-01-2005, 11:55 AM
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Re: (lazyeyez)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lazyeyez »</TD></TR><TR><TD CLASS="quote">how much am i looking to pay for a good quality one? which would be best?</TD></TR></TABLE>
Oh boy... that's like asking which oil to use. You can probably find one aroudn $250 - $300+ depending on what you need.
I got my Zeitronix for aroudn $270 shipped I think, but you'll need a laptop to monitor it as that price doesn't include gauge, but on the bright side, it includes datalogging - which is more important to me than the gauge.
Oh boy... that's like asking which oil to use. You can probably find one aroudn $250 - $300+ depending on what you need.
I got my Zeitronix for aroudn $270 shipped I think, but you'll need a laptop to monitor it as that price doesn't include gauge, but on the bright side, it includes datalogging - which is more important to me than the gauge.
02-01-2005, 11:55 AM
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Re: (lazyeyez)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lazyeyez »</TD></TR><TR><TD CLASS="quote">how much am i looking to pay for a good quality one? which would be best?</TD></TR></TABLE>
I use the Techedge 2.0a unit and I love it.. I have also use the AEM wideband which is also a great unit..
I use the Techedge 2.0a unit and I love it.. I have also use the AEM wideband which is also a great unit..
02-01-2005, 12:45 PM
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Re: (tgreaves)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tgreaves »</TD></TR><TR><TD CLASS="quote">
... I have also use the AEM wideband which is also a great unit..</TD></TR></TABLE>
Hmmm...I also have the AEM and I think it is a piece of ****.
I would go with a PLX...but that is just my $.02
... I have also use the AEM wideband which is also a great unit..</TD></TR></TABLE>
Hmmm...I also have the AEM and I think it is a piece of ****.
I would go with a PLX...but that is just my $.02
02-01-2005, 01:00 PM
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Re: (96-EJ6 B18C)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 96-EJ6 B18C »</TD></TR><TR><TD CLASS="quote">
Hmmm...I also have the AEM and I think it is a piece of ****.
I would go with a PLX...but that is just my $.02</TD></TR></TABLE>
Any special reason you dont like the AEM unit?
Hmmm...I also have the AEM and I think it is a piece of ****.
I would go with a PLX...but that is just my $.02</TD></TR></TABLE>
Any special reason you dont like the AEM unit?
02-01-2005, 01:07 PM
#13
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Re: (Cray91)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Cray91 »</TD></TR><TR><TD CLASS="quote">I have first hand knowledge of the LM-1 and the PLX, they both ran well.
I have heard good things about the TE.</TD></TR></TABLE>
i use the lm-1
I have heard good things about the TE.</TD></TR></TABLE>
i use the lm-1
02-01-2005, 02:00 PM
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Re: (2001 ITR218)
Alot cheaper than the sensor for my TE 1.5. Sure glad I purchased mine before the L1H1 sensor more than tripled in price. I don't think you can even find L1H1 sensors anymore. But damn, it works great.
02-02-2005, 01:27 PM
#18
Re: (tgreaves)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tgreaves »</TD></TR><TR><TD CLASS="quote">
Any special reason you dont like the AEM unit?</TD></TR></TABLE>
Yeah, It's harder to read than the PLX and the f'ing sensor keeps going out...also the data loging is not as capable and the PLX M-500.
Any special reason you dont like the AEM unit?</TD></TR></TABLE>
Yeah, It's harder to read than the PLX and the f'ing sensor keeps going out...also the data loging is not as capable and the PLX M-500.
02-02-2005, 01:33 PM
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Re: (96-EJ6 B18C)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 96-EJ6 B18C »</TD></TR><TR><TD CLASS="quote">
Yeah, It's harder to read than the PLX and the f'ing sensor keeps going out...also the data loging is not as capable and the PLX M-500. </TD></TR></TABLE>
I do datalogging with the AEM EMS so I dont know about the widebands datalogging..
How long does your sensor last, where is it placed in the exhaust pipe, are you running leaded fuel?
Yeah, It's harder to read than the PLX and the f'ing sensor keeps going out...also the data loging is not as capable and the PLX M-500. </TD></TR></TABLE>
I do datalogging with the AEM EMS so I dont know about the widebands datalogging..
How long does your sensor last, where is it placed in the exhaust pipe, are you running leaded fuel?
02-03-2005, 11:38 AM
#20
Re: (tgreaves)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tgreaves »</TD></TR><TR><TD CLASS="quote">
I do datalogging with the AEM EMS so I dont know about the widebands datalogging..
How long does your sensor last, where is it placed in the exhaust pipe, are you running leaded fuel?</TD></TR></TABLE>
I have the sensor about 16" from the exhaust side of the turbo in the DP and I run unleaded 92...I did run the Sunoco unleaded 100 octane once. I wish I had an EMS to datalog with
I do datalogging with the AEM EMS so I dont know about the widebands datalogging..
How long does your sensor last, where is it placed in the exhaust pipe, are you running leaded fuel?</TD></TR></TABLE>
I have the sensor about 16" from the exhaust side of the turbo in the DP and I run unleaded 92...I did run the Sunoco unleaded 100 octane once. I wish I had an EMS to datalog with
02-03-2005, 12:20 PM
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Re: (96-EJ6 B18C)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 96-EJ6 B18C »</TD></TR><TR><TD CLASS="quote">
I have the sensor about 16" from the exhaust side of the turbo in the DP and I run unleaded 92...I did run the Sunoco unleaded 100 octane once. I wish I had an EMS to datalog with </TD></TR></TABLE>
Hmm.. Strange why the sensor keeps going out on you, I have never heard of one of them going up before..
I have the sensor about 16" from the exhaust side of the turbo in the DP and I run unleaded 92...I did run the Sunoco unleaded 100 octane once. I wish I had an EMS to datalog with
</TD></TR></TABLE>Hmm.. Strange why the sensor keeps going out on you, I have never heard of one of them going up before..
02-03-2005, 03:31 PM
#22
Re: (tgreaves)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tgreaves »</TD></TR><TR><TD CLASS="quote">
Hmm.. Strange why the sensor keeps going out on you, I have never heard of one of them going up before..</TD></TR></TABLE>
Yeah, I just pulled it out today and cleaned it again...to no avail.
Hmm.. Strange why the sensor keeps going out on you, I have never heard of one of them going up before..</TD></TR></TABLE>
Yeah, I just pulled it out today and cleaned it again...to no avail.
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