CEL's, 6 Codes...

[GofaST4life]

went to Autozone, had them check my CEL's...i thought at most i would have 2 maybe 3 codes...nope, 8 codes, 2 were repeats so only 6 codes really...i am very bummed/upset...if anyone can help, please do, i just finished a bunch of things with her and was looking forward to the weekend car show...

CAR INFO:
stock 1996 7 Bolt Engine
15psi - t25
3" cat back

Pretty much a stock DSM


here are the codes she threw, all information in red is from me and what i think might help diagnose...

P1103- Turbo wastegate actuator.
Last week, i was over boosting, and hitting fuel cut, i found out the vaccum line off the turbo came off, so i replaced it and have been checking it ever since.

P0100- MAP sensor, MAF sensor.
Yesterday i flushed the radiator, i removed the lower hose to replace, i took out the MAF to get to it easier, i forgot to plug it back in, started the car and realised after a minute or so that i forgot, and then plugged it back in. Maybe the code has not shut off yet? Idk

P0450- Fuel tank pressur sensor condition.
I removed my rear seat and put a sub in there, the guy at Autozone said i may have messed with the senosr when removing and or with the sub.

P0110- IAT (Intake Air Temp) circut.
No clue, to much hot air maybe or somthing?

P0446- EVAP purge/vent solenoid circut condition.
I replaced a lot of the old cracked vaccum lines, if i forgot one would this code be thrown or is it something else possibly?

and now, the best for last, the one that im most worried about...

P0335- Crankshaft position sensor condition.
I dont want to get ahead of myself, but crankwalk did cross my mind. Engine has 94,xxx miles, all stock. I read some where here on tuners that if you can test for crank walk, i did what i read, which consisted of making a left hand circle going at least 15 mph, press in the clutch and release, if your foot beats your clutch back to engaged position, then you have a problem, well the clutch followed and didnt stay disengaged, it came right back up. (this is what i read)

all help is greatly appreciated, sorry for ranting, this just kinda hit me by surprise and all...

 

[GofaST4life]

i took the positive off the battery to reset the system and hopefully turn off the codes i think i fixed...drove around and after maybe 8 minutes of driving, the CEL came back on...

im going to go back to Autozone tomorrow to see what codes are still being thrown...

Im surprised no one had anything to say...

 

[pj91gsx]

Im surprised no one had anything to say...

I have something to say. sometimes one fault code and throw off another. For example if your ISC was bad and you were running rich, your ecu may throw O2 sensor and ISC as bad.

Also, maybe the fact that speakers are magnetic it may have messed with you fuel sensor, Take out the speaker and see if it helps. Last thing, to reset the ecu disconnect the battery for about 30 seconds. The MAF sensor probably didnt go bad, the MAF just wouldnt work because you would need to reset the ecu, because you forgot to plug it in.

 

[GofaST4life]

Also, maybe the fact that speakers are magnetic it may have messed with you fuel sensor, Take out the speaker and see if it helps. Last thing, to reset the ecu disconnect the battery for about 30 seconds. The MAF sensor probably didnt go bad, the MAF just wouldnt work because you would need to reset the ecu, because you forgot to plug it in.

the battery was disconected for a good 5 to 6 minutes.

the car ran fine after i plugged the MAF back in, all im saying is that maybe for the one minute it wasnt plugged in it threw a code, which is why i reset the system, to see if that code would now be turned off.

guess ill just find out tomorrow witch codes are still apparant.

 

[pj91gsx]

how did it go?

 

[Illmat1c]

Yea man let us know in case it happens to me since im around 100k

 

[SpiralOut]

Yea man let us know in case it happens to me since im around 100k

Huh? In case it happens to you? wow

 

[GofaST4life]

bad news, i wasnt able to get to Autozone because the car wouldnt start today...idk why...battery is good, plugs and wires are good, shes getting fuel...wont turn over...

i think i spent all of the after noon trying to get her to start.

maybe tomorrow she'll run, i can only hope. (crosses fingers)

 

[SpiralOut]

Did you try the starter?

 

[toojung2die]

bad news, i wasnt able to get to Autozone because the car wouldnt start today...idk why...battery is good, plugs and wires are good, shes getting fuel...wont turn over...

Won't turn over? Does that mean the starter motor doesn't crank the engine or it doesn't run after cranking it for a while? Stupid question but I often get people describing the both conditions the same way. You got your MAF plugged back in an you found the probable cause of all you other MIL conditions so the last one on your list, crankshaft position sensor, is where I would be looking. Severe crank walk will destroy the sensor and prevent the engine from starting. The sensor is behind the lower timing belt cover.

When I scan an ECU for codes I record the ones found, clear the codes and see what code comes back first. As someone mentioned earlier the codes recorded can be a growing list caused by the first error that occurred.

Anyone with a '96 and later model year car that wants to work on their own car should have an OBD-II error code scanner in their toolbox. It has become as necessary as a metric socket set.

 

[GofaST4life]

sorry, i should have been more specific, yes i tried the starter, it works, the engine just wont fire.

toojung2die, a logger is coming up on my list of things to buy, money is tight and gas prcies arent helping that out...i do see what your saying, which is why i did the reset. after the reset, it did start (posts 2 and 4) and during that time, she ran much better than before, so i do think that the reset turned a code(s) off, i just wish she would start so i could see what codes came back.

man this sucks...

 

[pj91gsx]

are you saying the spark plugs dont spark?

 

[GofaST4life]

no they spark....

but here's the latest crap...so i go out to work on it and for sh*ts and giggles i tried to start it, first try got nothing, but on the second try she awoke!!! WTF

so...i take her out for a spin....she seemed to be fine, running good...then out of no where, the idle became very bad, flucuated (sp) between like 100 and 600...i then drove to autozone.

she only threw 2 codes this time...YAY!!!

first code was emissions EVAP (P0446)...

second code was P1103, Turbo Wastegate Actuator....but the thing is, on the logger it read something like "fuel air meter malfunction or mixture"....idk...i got confused...

so we go inside and on the computer it pulls up the MAS ($219.99)...

now, ive learned a sh*t ton of info on DSMs...but why would the MAS be some how linked to a problem with the turbo wastegate actuator??



This is also on my mind, should i still worry about the codes that were thrown before? Esp the Crankshaft Angle Sensor Code?

 

[toojung2die]

so...i take her out for a spin....she seemed to be fine, running good...then out of no where, the idle became very bad, flucuated (sp) between like 100 and 600...i then drove to autozone.

first code was emissions EVAP (P0446)...

second code was P1103, Turbo Wastegate Actuator....but the thing is, on the logger it read something like "fuel air meter malfunction or mixture"....idk...i got confused...

so we go inside and on the computer it pulls up the MAS ($219.99)...

now, ive learned a sh*t ton of info on DSMs...but why would the MAS be some how linked to a problem with the turbo wastegate actuator??

This is also on my mind, should i still worry about the codes that were thrown before? Esp the Crankshaft Angle Sensor Code?

If the crank angle sensor was broken you would not get a spark. Don't be concerned with it unless it comes back.

If the wastegate actuator was stuck closed the turbo would over spool and the MAF would read an unusually large amount of air passing through and setting the P1103 code. Too much boost. Are you hitting fuel cut when accelerating? Check the hoses from the turbo to the wastegate actuator. If the actuator is good then the MAF could be reading airflow incorrectly; bad MAF or bad connection to the MAF. Check the plug again.
The P0446 could be a loose gas cap, vacuum line leak to the evap solenoid or a bad evap solenoid.

 

[toojung2die]

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[GofaST4life]

no im not hitting fuel cut..but that is some good info there....thank you for that, im going diagnose more in the morning