code 53 still

[shackwrrr]

well jerry I sent my ecu to dave and he sent it back to me with 75 dollars less in my bank account. he didnt tell me what he did. Well I got back to the zuk and installed the computer made sure all the grounds are good very low voltage drop on all circuits to ground and all pin voltages are right where they are supposed to be. I still get that stupid code 53. But now it doesent go into limp mode. Other than 53 everything works great. before I sent it to dave it would run great untill it warmed up then it would be in limp mode on restart. now there are no problems restarting. I just cant figure this stupid thing out. any ideas? or do you think the memory is bad in the computer? or do you still think its something else?

could maybe a california board was bolted into my fed computer case?

Thanks

[jtgh]

53, , if all the grounds are good.
and power is solid , then it must be the goffy calif. issue.

if you can get 28mpg + , its good. best case.

we dont get many 53s here.. and they are no fun to get.

board swap/case is possible. very astute !

other possible a new Main relay?
sensor ground ( there is a special wire called sensor ground) , i think? it must never touch body. It might be sensed, ( i dont know for sure)

some ECU (for sure) do sense ground and adjust readings for any error on ground.
this makes sensor readings very accurate.

i do not know all the secrets of this ecu. it is interesting to me any 53.
the manuals are dumb as brick on this.
check power and ground, replace ECU.
yah , right......

if a diff. ecu gave 53, then we'd know for sure its, body wiring or a shorted sensor.

not sure what ecu will throw if something shorts out +5vRef pin.
I do know a 8v ecu this blows traces off the PCB .
on on 16v, this looks diff. by my observations.
it too , might be sensed for errors on 16v ecu.

i do hope your 75 makes car save tons of fuel and gives a return on investment FAST.
I do .

cheers.

[jtgh]

advice. (do only if you want )
if it were mine, besides above.
id buy a 16v ECU outright.

then try it.
if you get 53, then find why.
if no 53, sell old one on ebay and get money back or at least most.

hope you like my idea.

exhanges are too much $$ , IMHO. but im a cheap skate.

[shackwrrr]

dave is working with me right now hes acually never heard of the dode 53 I will see what he says

[jtgh]

not too surprising , this code is rare.

only seen one here, ever and it was a false code. ( doing elect. work tripped it, key on)
resetting it, cleared it, and it never came back.
but yours. I'm not sure.?

we need Joe Suzuki engineer to tell us the real story. but sadly we moved to Fiat. ahahahaha

it could actually be a bad ECU.

it could be corrupted memory. or or something really complex wrong in the main high speed logic of the board.

most ECU'S fail for:
1: bad caps ( and the after math of boric acid leakage) (90% of all orig.OEM not touched by anyone boards)
2: bad output drivers ( someone or thing ,shorts power to a driver transistor and blows it up) all old ECU are subject to this.
3: bad +5vref power supply ( zener diode bad on board , or blown trace on 8v) ( someone shorted a sensor)
4: bad injector driver(s)
5: bad inputs (blown inputs ( hard to do ) (ligthning or berserk Alternator regulator , over voltage event)
6: something far far more complex. ( this is where the real pros and equipment are needed, and is very costly)

at some point, it becomes far more smart, to just get another core.

no point in putting $100 labor into a $10 core (dead).

no point at all. ( well, unless you cant find one, but here, that is not an issue, yet)

most folks do not understand these realities.

its like finding a cracked block. ( oops)

for the record.

[jtgh]

btw my 96 ECU core (good) cost $100 out right, no exhange.

not a bad idea for the future to have one.
they cost $700 to $3500 at dealers.

and as time goes on , they hold there value , better than Enron, and all the others.


$50 can net you an 8v ECU.

[shackwrrr]

well I just took a 80 mile trip to my sisters andit ran great the whole time not a problem at all. for the 150 I have in this thing it isnt too bad I guess. I can live with a little light on the dash as long as it runs good

[jtgh]

id not worry 53 if mpg is good.

wow a 150 car.
that is a record here.

all the best to you,
come back if you have probs.

cheers.

[shackwrrr]

very rough and very conservative fuel mileage equaled 28 miles to the gallon so I think I am good to go. I forgot to buy a vent tube for the tank and forgot about forgetting so I filled up with a missing hose. well my first 35 miles took me down to 2/3s tank from the losses through the hole. well my last trip brought the total mileage to 205 and I am down about a half tank from where I left and I know i was still leaking from that hole. so to go that far on a leaky tank isnt too bad, I acually got 22 miles to the tank with it leaking all over the ground.

[jtgh]

leaking fuel,

be careful , ok?