transmission help needed

[Y33TREKker]

Have you taken it somewhere like AutoZone, etc. to determine if the ECU is throwing any trouble codes? Having some specific information like that would help with further diagnosis.

Or, just check this out for a DIY.

Reading VX trouble codes

[rureadyto69]

how do u read the codes i know the check engine will flase but how do u know what the code is by that

[Y33TREKker]

Clicking on the "reading VX trouble codes" link I included in my last response will take you to a thread that explains the procedure for reading codes and determining what they mean.

[Solitude]

how do u read the codes i know the check engine will flase but how do u know what the code is by that

go to your local autozone/napa and have them read the code..right it down and come back here and do a search.. the codes will be numerical ie: P0401 0r P01400 and such

[Bieredalsace]

still no luck with it i found someone today that wants it so i think i'm just goin to unload i really hate to see it go for just a simple problem though

I just had the same problem as rureadyto 69.
I had no trouble codes on the dash...but once I quickly accelerated uphill at a speed to pass some "sight seer"
all of a sudden my "check engine and check trans" lights started flashing. I parked it overnight for a few nights and when I started it up the same codes were still flashing. This is not the first time it happened. On a trip to Autozone, the code reader said to check the PVC valve or the wires that connect to it (Check Trans " light wasn't on that time. So I bought a $150 new EGR valve (which I have yet to install). And just as suddenly as it started the "check engine" light went out.
Someone out there has the expertise to answer this question, I'm sure. What are we to check or fix when each of these lights come on.
Thanks

[kodiak]

Sounds like you might have a short someplace. I’d check the wires going to your O2 sensor, if it’s reacting to moisture then that’s probably your best bet. Your transmission problems on the other hand, it sounds like it needs to be serviced. Reading thru the thread I didn’t see that your had done that. I might have missed it.

[rureadyto69]

the check engine light is on and so is the tod light but autozone either didn't know how to get a code off it or they just couldn't get one off it so i'm at a loss

[Solitude]

Theres an eprom underneath your dash, they should have a code retriever for the CEL, it plugs in and the code is retrieved on a scanner type box that they should carry, sorry if this didnt help

[rureadyto69]

ya they did that but they said everything was fine

[johnny010]

did you check to see if you need to replace your intake gaskets?

seems to be a common issue that makes the check engine light come on.

[etlsport]

if your check engine light is on there should be a code.. the tod light you have to check with an isuzu dealership tool or by "hotwiring" your data port under the dash.. i forget which pins you are supposed to connect but do a search for "abs code" and im sure you will find the instructions


if they cant get a "P" code for the check engine light (or turn it off, even momentarily) check the fuse for your horn under the hood, if that blows, the data port under the dash stops working

[don moore]

autozone autozone autozone

[Cris]

Just about any parts store will give you a free code reading {auto zone o'rielies } but as for the fuel flow I had to replace three sensors iac sensor has to do with fuel flow throttle sensor and a mass air and a fuel pump Two of the sensors came at once and all the rest one at a time. Check the fuel pump by checking fuel pressure with the motor under a load, mine ran ok slow or babying it but when you needed to go it would fall on its face lost pressure under a load. Fuel rail should carry about 43lbs of pressure at a idle. Hope I helped

[rureadyto69]

yes and the only thing that comes up is the o2 sensor and i've replaced them all and the problem is still there

[garfull]

i get the same cel for the o2 sensor on the passenger side right next to the trans in the totally pain in the asrsh place. ive had the shop replace it twice. but the cpu is not getting an signal from the sensor i suspect the mustve yanked on the connector too hard. if it were in a better location and the o2 sensors where cheaper i would fix it. but i drive it probably once a week so ive been lazy to fix. my mpgs havent been affect so im going to let it be for now.

i did started noticing that it would happen in the winter months. we have different blends on gas in the winter than in the summer.