quick question about engine

sheepdizildawg · Post by **sheepdizildawg** » Fri Aug 08, 2008 6:34 am

the other day my engine was fine, and now since yesterday, it has lost power, when I step on the gas pedal it sounds like its trying to go up a hill, I am guessing either dead spark plug or a F*ed cylinder.. any thoughts?

daewoomofo · Post by **daewoomofo** » Fri Aug 08, 2008 9:41 am

i say do a tune up. plugs, wires, fuel filter, air filter, run some injector cleaner through it. see what happens after that. dont just assume what is wrong till you know

Pir0 · Post by **Pir0** » Fri Aug 08, 2008 10:55 am

Probably not getting enough fuel, if it sounds like it's bogging down under WOT.

BosnianLanos · Post by **BosnianLanos** » Fri Aug 08, 2008 2:08 pm

TPS or Ignition Coil. Coils tend to go overnight. They rarely die while driving.

sheepdizildawg · Post by **sheepdizildawg** » Fri Aug 08, 2008 6:20 pm

hope its not the coil, just replaced it about 3 months ago. have the day off so I am going to try cleaning everything

sheepdizildawg · Post by **sheepdizildawg** » Fri Aug 08, 2008 7:10 pm

just checked spark, all have spark to them.. I read somewhere that the cat might have collapsed and that might cause it.

BosnianLanos · Post by **BosnianLanos** » Fri Aug 08, 2008 8:33 pm

...Your cat won't collapse, trust me. Is the car throwing a CEL? Sounds like an electrical/sensor issue to me.

sheepdizildawg · Post by **sheepdizildawg** » Fri Aug 08, 2008 8:53 pm

yeah it came on right after it started the problem, it was on about a week ago, but i reset the ECU and it went off for the week, but its back on, know what sensor it might be?

daewoomofo · Post by **daewoomofo** » Fri Aug 08, 2008 9:10 pm

go get the car scanned and you will know exactly what sensor it is

sheepdizildawg · Post by **sheepdizildawg** » Fri Aug 08, 2008 10:32 pm

yeah have to find someone around here to do it

daewoomofo · Post by **daewoomofo** » Fri Aug 08, 2008 10:39 pm

autozone will do it free, i think advance will too, pep boys prolly does it too

sheepdizildawg · Post by **sheepdizildawg** » Fri Aug 08, 2008 10:41 pm

ok. sweet. autozone is like 3 minutes down the road, hope the woo will make it up the hill

sheepdizildawg · Post by **sheepdizildawg** » Fri Aug 08, 2008 11:29 pm

just got back from autozone

this is what came up from scanning

P0420

The PCM has determined that the catalyst system efficiency for bank 1 is below threshold for the current engine operating conditions. (Bank 1 identifies the location of cylinder #1, while bank 2 identifies the cylinders on the opposite bank)

Definition
Catalyst efficiency low-bank 1

Explanation
The oxygen sensors monitor the catalytic converters ability to store oxygen

Probable Causes
1- Catalytic converter defective (Failure possibly due to #2, 3 or 4)
2- Engine misfire or running condition
3- Large vacuum leak
4- Engine oil leakage into exhaust-valve guide seals, piston rings

Ok well I dont have smoke so its not number 4, and my engine isnt miss firing as far as I can tell

and the other code they found was

P1627
module supply out of range

OEM Brand: General_Motors

definition
Analog to digital (A/D) performance

Explanation
The ECM has detected a fault in the A/D converter within the ECM
Probable cause
Failed ECM

hope my ECM isnt F*ed

any thoughts?

daewoomofo · Post by **daewoomofo** » Sat Aug 09, 2008 12:22 am

if it is you can get a new ecu for cheap

sheepdizildawg · Post by **sheepdizildawg** » Sat Aug 09, 2008 12:25 am

but would the car still be drivable with the ECU dead??