classicalgq

If i try to hold any constant speed below 75 mph, car dies as if out of gas for 2-5 seconds even if a floor the gas pedal nothing happens. I think its the 02 sensor because when i unplug it, car runs great. I have asked hundards of Honda owners what the problem could be and noone knows. Need to make sure if its oxygen sensor and not something else b/c new 02 sensor cost $497.00 Really need your input i have been dealing with this probem for years. thanks

OMGWTFBBQ!

Check engine light?

Hanmin

sounds like your tps is unplugged. or maybe tps and map switched.

classicalgq

there is no check engine light. but codes 12, 22 once came on. 12 is exhaust gas recirculation (egr) system and 22 is variable valve timing and valve lift electronic control solenoid valve (vtec pressure switch). but both went away within an hour and that was over a year ago.

Hanmin

go to the junkyard, and pull one of their o2 sensors off. might as well pull a couple off=].

Syndacate

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hanmin &raquo;</TD></TR><TR><TD CLASS="quote">go to the junkyard, and pull one of their o2 sensors off. might as well pull a couple off=].</TD></TR></TABLE>

He won't find VX O2 sensors in a junkyard. Trust me, there's people that will go in there looking for specific cars (like obd-I civic EX's, Si's), or OBD-I civic VX's, or OBD-II civic HX's to look for high demand, high priced OEM parts such as the P28 ECUs or 5 wire O2 sensors.

@ OP:
Well from what you're saying it sounds like the O2, yeah, the 5 wire O2's on the VX's are a bitch, if you search around I'm pretty sure you can find one for low 4's, like 420.

The only thing I can think of is borrow one from somebody for the day and see if the problem continues, if it doesn't, then you'll have to look into buying one.

Relic1

unfortunately the VX isn't so easy to find in yards, and yes the O2 is very specific to the VX. (and the HX)

if your fuel mileage has plummeted lately then look into the O2. If not check your engine-chassis grounds.

BTW, there is a VX O2 for sale on ebay right now, brand new for $65. search L1H1.

blk92_d16

You must have the Cali emissions ecu cuz I've got a Z1 head/motor in an Ex with the Ex IM and supporting stuff (no EGR) and I don't get the EGR code from my P07.

classicalgq

Wow thanks for the find on ebay, by the way i looked at my o2 sensor in car and wires are is black, white, yellow, orange, and RED. But book says it should be BLUE wire. Does that mean this is my problem, they put wrong 02 sensor wire to begin with?

classicalgq

thanks for your help, i will test the tps and map sensor. I never thought that might be the problem so i would have overlooked it. By the way, can i test the tps by unpluging it and driving to see if problem goes away? I'm buying a multimeter this weekend but wondering if i could test it sooner. thanks

classicalgq

Its a 1993 D15Z1 non-cal (its uses a highband 5 wire O2 sensor) the california models use dont use highband 02 sensors

classicalgq

when you said the "tps and map switched" you meant that its bad right? or did you mean somthing else.

badboyr66

I think he means the plugs.....BUT LOOK FIRST DO NOT JUST GO SWAPPING PLUGS

Syndacate

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by classicalgq &raquo;</TD></TR><TR><TD CLASS="quote">thanks for your help, i will test the tps and map sensor. I never thought that might be the problem so i would have overlooked it. By the way, can i test the tps by unpluging it and driving to see if problem goes away? I'm buying a multimeter this weekend but wondering if i could test it sooner. thanks</TD></TR></TABLE>

Not sure how you'll drive your car without the TPS plugged in.

To test the TPS hook a multi-meter up to it. I think it's supposed to read .5v off, and 5v at full throttle, or some **** along those lines.

Relic1

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by classicalgq &raquo;</TD></TR><TR><TD CLASS="quote">Wow thanks for the find on ebay, by the way i looked at my o2 sensor in car and wires are is black, white, yellow, orange, and RED. But book says it should be BLUE wire. Does that mean this is my problem, they put wrong 02 sensor wire to begin with?</TD></TR></TABLE>
ehh, no big deal, the plug is the same. Wire colors mean very little sometimes.
it could also be the difference between the L1H1 and the L2H2... both work in the VX.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by classicalgq &raquo;</TD></TR><TR><TD CLASS="quote">Its a 1993 D15Z1 non-cal (its uses a highband 5 wire O2 sensor) the california models use dont use highband 02 sensors</TD></TR></TABLE>
wideband.
and actually the 92 cali-spec VX had the same wideband, but the lean burn mode was disabled. 93-95 cali-spec used the standard 4-wire O2. (more useless VX knowledge that's crammed into my head)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Syndacate &raquo;</TD></TR><TR><TD CLASS="quote">To test the TPS hook a multi-meter up to it. I think it's supposed to read .5v off, and 5v at full throttle, or some **** along those lines.</TD></TR></TABLE>
.5 = idle
4.5 = WOT
tested with key in run(II) engine not running.

classicalgq

Wouldn't a big misstake for Honda to switch the plugs around, there would have been a big recall in the 93, right? I don't think the TSP and MAP plugs will even fit or reach each other but I will check to see if they're switched. (It could be possible b/c I don't know much about cars)


Modified by classicalgq at 1:35 PM 8/4/2008

classicalgq

WIDEBAND (sorry not highband) but just talked to NTK and they said that L1 H1 (part# 24300)and L2 H2 (part# 24302)are different and may not work on each (car computer may misread it due to different mulitamps are smaller on L2H2 modes). L1H1 has a RED wire and L2H2 has Blue and gray (instead of orange) wires other then that colors are the same. L1H1 are over $400-600 and L2H2 are under $200 so even though they fix, they may not work right. What's why people on Ebay will not tell you part numbers to 02 sensors b/c ones they pass off as 02 sensors for your car are the lest expansive ones. Also, NTK makes all wideband 02 sensors for other major 02 makers, like walker, Bosch, etc.


Modified by classicalgq at 9:20 AM 8/4/2008

classicalgq

So in other words, my $70 plus dollar 1993 Honda Civic Service Manual's wiring chart is wrong. Book chart said I needed a 02 sensor with a blue wire instead of red wire wideband sensor. I think its b/c of one of two things. ONE: This problem was a mistake from the beginning by the publishers by thinking the 92 VX model's O2 sensor had the same wire colors as 93 model and based the wire chart on that. Or TWO: It may have been right when printed but not anymore today because 02 sensor makers will somethings for change OME wire colors for no reason.
So really the "color" of o2 wires don't matter so long as you call the maker of 02 sensor and make sure its for your car and wont just "fit". By the way, if someone is trying to sell you a 02 sensor tells you that his/her 02 sensor will fit any car from 92-07, they're lying to you or just pain wrong. That would be like saying a L2H2 (99-08 cars) are the same as a L1H1 (92-98) which is not the case. Man, all this information I needed to find out for just one part is really starting to hate this #@*%# car!


Modified by classicalgq at 3:18 PM 8/4/2008