TURBO'S to do list (MonyRunner)

[BigMike]

TURBO



What about your engine water temp sender? If it is a complete short (wire melted to exhaust or something) then the ecu would think it's like -50 F outside and it would fatten up the injectors and run really rich. I don't know much about the 3VZ as they might be two temp senders, 1 for the gauge and another just for the ecu. Check if there are two and then check the wiring for them.

Also, trace your O2 sensor wiring and make sure its not shorted out. Put your Ohm gauge on your O2 plug and make sure only the proper circuits have a ground.




Need more Can anyone share please?

[Toymin8r]

Just a suggestion but have you checked your timing?   I used to adjust mine to get it to pass emissions and it made the exhaust manifold and cat glow from the heat like that.

[TURBO]

hey BigMike,

the basic stamp... i remember having problembs with it remembering code when the bat was low... could my ECU have forgoten part of it's programing code?

[TURBO]

um... no i have not checked the timing but i have not moved the distributor sence the roundup last year...2008 and it was running fine then... so that shouldn't be it... unless i have miscalculated somewhere...

[BigMike]

Post this in the Parts Wanted section: Does anyone within 100 miles to Fresno have a 1989 V6 5spd ECU I can borrow for 5 mins?

[TURBO]

ok, so, after helping mike all day with his wife's car, i think it's finaly time for me to turn in... gotta work in the morning...

i probly wont have much time during the week to update this so maby this weekend you'll see some updates... maby.

keep your ideas come'n as i really need to get this thing smoged. this is my last chance... and i only have untill febuary to get it right

well thanks for all the help guys, once agin y'all have proven to be the best members on the best forum in the whole dad gum world 

[LilChief87]

damn sounds like my truck problems after problems how you been turbo

[TURBO]

I've benn good rebletoy83, but i'd be a whole lot better if my truck started working all of a sudden...

so i chainged out the air flow meter that i messed with so it's back to the stock setting....

        it did nothing....

i went and got a used 89 computer, installed it......

        IT DID NOTHING.................................

maby if i take that "yes on prop 8" sticker off, god will let me drive it around agin....

[BigMike]

[NorCalToy]

Post this in the Parts Wanted section: Does anyone within 100 miles to Fresno have a 1989 V6 5spd ECU I can borrow for 5 mins?

Ive got a spare ECM from a 1990 4Runner V6 5spd...

[TURBO]

hey louie... got an igniter???

[TURBO]

fig H
http://s105.photobucket.com/albums/m205/turbotoyotatruck/?action=view&current=P1080540.mp4

[Duffil]

using a soldering gun to trigger spark?

[TURBO]

yup... one of marlin's tricks.....

[TURBO]

cant alwase see the spark in the vidio.... but you can here it.... i gues it has to do with my camera's frame rate and the cycles of the ac curent

[TURBO]

so i came home from work, thought, wtf... y not try to start the stupid pig...

fig I
http://s105.photobucket.com/albums/m205/turbotoyotatruck/?action=view&current=P1090551.flv

[BigMike]

It sounds pretty good. Was the entire cat glowing red or only it's inner core(s) ?

Maybe the honey cone inner core(s) always glow red, but it does have enough conductive energy to increase the temperature of the outer metal shell?

I still think it is running waay too rich though.. Can you take a video of it 1) revving and 2) constant high rpm, like a constant 4000 rpm please?

[BigMike]

Have you pulled spark plugs to see if it is 1 cylinder running rich or all 6?

[TURBO]

negitive on the spark plug pulling, BigMike... you know how that chaps my hide...

[BigMike]

Just pull out cylinders 1-4, and 6 since they are the easiest, and compare them.

Here is normal:


And this is what they would look like if your engine was running very rich as I suspect:

[TURBO]

oh and thanks for asking nicely but you need to be asking MoneyRunner nicely if you want vidios of it running... let alone as specific rpms and such......

[TURBO]

you are so handy mike... color pictures and every thing....

[TURBO]

ok... should i check this BEFORE i buy a cat? or dose it matter...

the center of the top of the outer shell of the cat was glowing after only about 30 seconds of run time.... of corse it's dark out but... that seems x-treamly excesive to me

[BigMike]

Definitely get it running right before you slap a new cat on there!

The only way your current cat could be affecting your engine right now is if it was somehow plugged up creating a huge amount of back pressure. But if this was the case, you would have much more serious problems like burnt valves on your hands.

I don't think it will give us any useful data, but you could run a compression check just for poos and giggles.

[BigMike]

We need to find out if only 1 plug looks like this, or all of them. You either have a badly leaking injector, a dead cylinder (no compression), or you have an overall ignition problem. I'm guessing it's an overall problem and they all look like this...

[TURBO]

if i had a compresion test kit... what would burnt valves act like?

[TURBO]

ok... here's #2 cylinder

[NorCalToy]

so wheres that fall on the chart BM posted?

[BigMike]

ok... here's #2 cylinder

It doesn't look that bad. I was expecting worse. Perhaps you indeed do have 1 cylinder alone that is giving you trouble....?

if i had a compresion test kit... what would burnt valves act like?

Well, it would crank funny and have a rough idle because the power delivery would no longer be balanced. It would run like crap.

The reason I mention the compression, is because besides air, three things are required for any otto cycle engine to run: 1) Fuel, 2) Ignition, 3) Compression.

Remember that simply sparking fuel isn't enough for the combustion we need. The air fuel mixture must be under what? .... under compression!

Burnt valve = compression leak = less compression = very poor combustion.

[79coyotefrg]

is that like a.100 gap