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electrical issue?

 
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Old 13 Apr 2017, 01:56 pm
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Default electrical issue?

Ok, so the other day, I was leaving work, and the check engine light came on. About 10 minutes into my drive home, and the car starts to stumble badly, and even stalled out on me. I popped the hood, played around with the coil wires, and it started back up. On the way home, it kept stumbling, badly. I checked the codes, and got P0032, and P0038. I figured since checking the plug wires seemed to help, and the fact that I got wacked while doing so, I would change those. It didnt fix the problem, and yes I know those codes are for the o2 sensor, but i didn't think it would act that way because of a bad sensor. Today I checked the codes again, and now I'm also getting P0300, and P0573, which leads me to believe it's electrical. According to what I found, P0573 is related to the cruise control, which I haven't been using. I don't have a lot of free time to look into this, so I was hoping someone could point me in the right direction. Thank you.
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Old 13 Apr 2017, 05:57 pm
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Location: Phoenix AZ
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Default Re: electrical issue?

help us to help you. need car year/model and it is easier for us if you post the obd definitions with the number. then I don't have to search for the manual which seems to be missing at this time... save money and test these sensors first! they may not be bad. and take note if they have any brand markings on them (oem vs aftermarket)
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Old 13 Apr 2017, 10:51 pm
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Default Re: electrical issue?

I would suggest resetting the engine trouble codes with a OBDII Scan Tool and see if they come back.

If the same codes come back I would suggest having a battery load test done to confirm battery and generator are working properly.

Post what you find out.
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Old 16 Apr 2017, 09:31 pm
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Default Re: electrical issue?

I apologize for not being more specific. These are the codes I'm getting:

P0300 Multiple cylinder misfire

P0032 Oxygen sensor Bank 1 circuit 1

P0038 Oxygen sensor Bank 1 circuit 2

P0573 Cruise control / Brake switch 'A' circuit high

It's a 2004 PT Cruiser GT 5 speed 102,000 miles

The first time the check engine light came on, I was getting the to oxygen sensor codes. When it came on again, I got all 4. As I said earlier, I haven't been using the cruise control at all. The car will run for several miles with out any trouble, than start acting up randomly. I was barely able to get it to go 15mph last week when it was acting up doing 3000 rpm. I haven't looked at it all over the weekend, because of being busy with other things. I've been driving my truck.
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Old 17 Apr 2017, 12:59 am
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Default Re: electrical issue?

Quote:
Originally Posted by PaTurboCruiser View Post
I apologize for not being more specific. These are the codes I'm getting:

P0300 Multiple cylinder misfire

P0032 Oxygen sensor Bank 1 circuit 1

P0038 Oxygen sensor Bank 1 circuit 2

P0573 Cruise control / Brake switch 'A' circuit high

It's a 2004 PT Cruiser GT 5 speed 102,000 miles

The first time the check engine light came on, I was getting the to oxygen sensor codes. When it came on again, I got all 4. As I said earlier, I haven't been using the cruise control at all. The car will run for several miles with out any trouble, than start acting up randomly. I was barely able to get it to go 15mph last week when it was acting up doing 3000 rpm. I haven't looked at it all over the weekend, because of being busy with other things. I've been driving my truck.
this is a sign of computer failure. bad news it's about a $500 replacement part used.
when you have a auto-motive electrical meter you can set on duty cycle, and while the engine is 'acting up' and actively misfiring, you need to probe the fuel injector driver circuits to find out if they are firing.
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Old 17 Apr 2017, 01:19 am
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Default Re: electrical issue?

Quote:
Originally Posted by _PTGT03 View Post
this is a sign of computer failure. bad news it's about a $500 replacement part used.
when you have a auto-motive electrical meter you can set on duty cycle, and while the engine is 'acting up' and actively misfiring, you need to probe the fuel injector driver circuits to find out if they are firing.

I would still suggest resetting the engine trouble codes with a OBDII Scan Tool and see if they come back. You want to do a proper diagnostic before replacing any parts.

If the same codes come back I would suggest having a battery load test done to confirm battery and generator are working properly. If your battery voltage is low it can trigger random codes.

Post what you find out.
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Old 17 Apr 2017, 10:24 am
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Default Re: electrical issue?

The fact that the car will run fine for a few miles then start acting up leads me to believe it's actually related to the o2 sensors as the codes are saying. The additional codes the second go round were a result of the o2 sensor codes.

The computer ignores those sensors for a short while till things warm up a little. During that warm up time it's running in open loop (baseline programming).
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Old 17 Apr 2017, 11:04 pm
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Default Re: electrical issue?

Quote:
Originally Posted by ptcruisersteve View Post
I would still suggest resetting the engine trouble codes with a OBDII Scan Tool and see if they come back. You want to do a proper diagnostic before replacing any parts.

If the same codes come back I would suggest having a battery load test done to confirm battery and generator are working properly. If your battery voltage is low it can trigger random codes.

Post what you find out.
fantastic
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2003 GT M/T in Onyx Green Pearl on Michelin Pilot Sport AS 3 Plus Tires 205/50ZR17. Dark Slate Gray Interior. OEM cargo net, parcel shelf, slush mats and trunk protector, mud flaps, mopar subwoofer. Platinum edition pedals, Neon SX 2.0 steering wheel with black+grey wrapped leather cover. Generic lowering springs, KYB gas shocks, Valeo solid flywheel conversion and clutch kit. Urethane insert engine mounts. Energy suspension full body urethane bushing kit. Chrysler premium front speakers, Jenson 6x9 rears. Boston Audio 4x55W amp. Panasonic head unit with xtenzi bluetooth. 300W AC power inverter. Escort 360max and Escort Shifter ZR4, dual front+rear dash camera. stage 1 blow off valve and syked tune computer . Boost and oil pressure gauges with Turbo-Timer. Needswings 3" exhaust elbow, Electric valve actuated Y-pipe with catalytic converter. To do: coilovers, 2step controller, quaife diff, Air-Fuel Meter
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Old 22 Apr 2017, 03:45 pm
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Default Re: electrical issue?

When the cel first came on, I did reset it with a code scanner. When the cel came back on, I now had the two additional codes along with the o2 codes. I have a '03 gt auto parts car. Would the computer work in a '04 gt 5 speed car? The battery is only a few months old, I'll check the voltage this weekend
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Old 22 Apr 2017, 04:32 pm
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Default Re: electrical issue?

Quote:
Originally Posted by PaTurboCruiser View Post
When the cel first came on, I did reset it with a code scanner. When the cel came back on, I now had the two additional codes along with the o2 codes. I have a '03 gt auto parts car. Would the computer work in a '04 gt 5 speed car? The battery is only a few months old, I'll check the voltage this weekend

I would suggest having a battery load test done to confirm battery and generator are working properly. Checking the battery and generator without a load is not the proper way. You need a battery load tester to confirm battery and generator is working properly. Some auto part stores that sells batteries will do it for free but make sure they set up the battery load tester correctly.
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