Tom-Guy

Try to Homeboy Depot the gauge to a length of high pressure fuel hose and some barb fittings. Fuel pressure should rise 1:1 with boost and fall 1:1 with vacuum (when measured in psi, which it isn't, but 30 in/Hg is about 15 psi so 2 in/Hg is 1 psi hint hint). If you are adding fuel in on the maps, and the fuel pressure is doing what it should, then you have some ignition problem either dead plugs or spark jumping to ground under boost, when plug spark gap resistance gets really high because it's harder to firfe through a dense intake charge.

Nope, but you're halfway there with the word "oxygen." Think about it. Oxygen enters the engine, ?what happens to it?, and then it smurfs out the exhaust and across the wideband sensor. So, yeah... what happens to it... when the engine runs correctly and what happens to it when... ??

You can do this.

Turblow

Ok I suppose I can try and Jerry rig a little setup tomorrow for a fuel gauge externally on the car, sounds kinda dangerous lol

I suppose my plugs could be fouled, there basically new maybe 1k on them, but ones had a good bit of oil burned on it, run rich run lean.

Oxygen mixes with fuel, its supoosed to fire and burn almost completely, I suppose if it doesnt ignite at all or fully it would still come out the exhaust less dense (wrong way to say it I know) and would give me a false reading?

But my plugs dont lie, there dead white...

Im going to rig up my 2.5bar map sensor right now and maybe get that running, hopefully. But I dont know, dont have any descent basmap bins

Tom-Guy

It's for five minutes, and you see plenty of domestics running that because dangerous is running pressurized fuel to the pass compartment.

You can kill plugs in five minutes, putting zero miles on them. Welcome to being a tuenarboi and ------- around with fuel maps, ignition systems, and boost.

You mean it passed out a lot of unburnt air, reading lean, when in truth the mixture wasn't lean at all?

Meaning? After 1K miles and a bunch of hammering on them... absolutely nothing?

Check xenocron's bin repository.

You could just have a wierd snippet of code. Add that in *after* you verify fuel and then fire...

Turblow

Youve been a good help JD, I really appreciate it.

I just wired up the 2.5bar map sensor chris sent me, its a tiny little devil, square unit. Different that what everyone has been getting from digikey, I hope Im wiring it up right.I was using this diagram, (1st pin on left to white, second to... etc etc)
http://honda-tech.com/zerothread?id=1406777

But I cant get the car to idle on it,itll fire up to 1800rpm or so and run *descent* 14.5:1 a/f then itll just die after about 2 seconds, I can throttle it but it just starts running peg lean and I dont wanna run it like that so I let it die. I tried the only 2 2.5bar bins on his site, both did the same

Tom-Guy

The first fuel values are taken from 0 rpm and 0 psi... plus there's the cranking and post crank enrichment stuffs. Try adding fuel where it's trying to idle... add it to those whole columns, as it might just rev there for a second and not idle there.

PS - those SOP-8 2.5 bars are great for sticking inside stock Honduh MAP enclosures.

Turblow

----, I even just tried to wire up the stock map sensor and throw in a bin and it did the same thing the 2.5 bar did

Sp aparently I do have the right map sensor? Can you verify that Im wiring it rigth based on the wiring posted in the Honda-tech thread I posted? Just making sure there the same.

I'll just stick to trying that one out I guess after I wire it. I'll try and make my own bin for it but I never have made a bin before. Just keep adding fuel I suppose

Turblow

Tried the 2.5bar, added 40% fuel, just cut out the same as before.

Im stumped, so many problems. So little knowledge. I wish I had some local help

paypal to whoever can help me with this, I need a ------- daily driver

Turblow

After having so many problems with my car running lean and not being able to lean it out I said scew the 3bar and just now installed a 2.5bar sop-8 sensor. Very small, not quite like the ones form digikey

Got it installed and grabbed 2 bins quick off xeno's depository.

I wired up the sensor like this
Pin 1 -> White
Pin 2 -> Grn/Wht
Pin 3 -> Ylw/Red

This sensor doesnt have 6 pins like the others, it has 4, fourth one was clipped when xeno sold it to me.

So I started the car and it instantly jumps to about 1800rpm, runs a bit shitty and then dies, total idle time was maybe 2 seconds. I can throttle it and keep it alive but it just goes lean and sputters and such. I tried adding fuel but it didnt do a thing.

I had this problem when I first go tthe sensor and thats why I went to a 3 bar without giving it a chance but I feel the 3 bar is causing my tuning problems so I need some help getting this going.

The cat is an 88 crx si, a6 motor with fully worked head and cam, built block. Dsm 450's, walbro 255 pump, stock FPR running Te 2.6.1

I dont know why my car wont run on aparently proven 2.5bar maps. but Im hoping someone can help me figure out why.
Willing to pay for serious help

cberman

lMy car went crazy lean all the sudden a copuple monthes back. the injectors looked fine, but i sent them away to get cleaned and flowcharted because it was an easy and cheap solution. put em in and my problems were fixed.

BTW, i used injectorservices.com

Turblow

Car runs mint under part throttle, its only in boost something goes crazy