CAR WON'T START BUT CRANKS

  • Tiny
  • CptTrevor
  • Member

I have check all the things you told me too. Here are the readings in resistance APS1 Pin 7 and 8 = 5.30 ohms. APS 2 Pin1 and 2 =4.98 ohms. Stepping on accelerator to monitor signal for APS 1 and 2 with Ignition off all test were made with ignition off. Without stepping no voltage signal in either one or two. Stepping on the accelerator still no voltage signal in either one or two APS. What is the EEPROM and where is it located? Could these results mean a bad ECM? I took it out and before I try to get another one let me know if my results is indicative of a bad computer module. Thank you Cpttrevor

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Monday, October 8th, 2012 AT 3:19 PM
  • Tiny
  • CptTrevor
  • Member

I took my MAF sensor out and put it in another car with same engine car started right up.

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Monday, October 8th, 2012 AT 3:24 PM
  • Tiny
  • saturntech9
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Replace the mass air flow sensor then clear the codes and go drive the car and see what codes come back. Without app singals the throttle body shouldnt be working too good.

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Monday, October 8th, 2012 AT 4:32 PM
  • Tiny
  • saturntech9
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Your supposed to use a scan tool to monitor that feed back voltage thats why they dont list wire colors terminals etc.

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Monday, October 8th, 2012 AT 6:10 PM
  • Tiny
  • CptTrevor
  • Member

I used a multimeter per your instructions on Oct 6, I don't have a scan tool I just have OBD11 code scanner. I use the multimeter on OHMS and then volts is this wrong? I put the MAF sensor back in my car and tried to start it would not it just crank but won't start. Cpttrevor

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Monday, October 8th, 2012 AT 9:43 PM
  • Tiny
  • saturntech9
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Yes that would be wrong when they say monitor the voltage and do not give instructions on using the multi meter to do that they are talking about using a scan tool to do that. Also if it starts with a mass air flow from another car but not your car I would say that you have a bad mass air flow sensor. Unfornately when diagnosing a car or fixing a car there a tools you just need to perform the diagnosing and repair. Even I have to buy tools to do that.

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Tuesday, October 9th, 2012 AT 2:35 AM
  • Tiny
  • CptTrevor
  • Member

No you misunderstood I took the MAF from my car and put in another car and the other car started right up. Put it back in my car and the same crank but no start. The only scan tool I have is the OBD11 code scanner.

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Tuesday, October 9th, 2012 AT 1:20 PM
  • Tiny
  • saturntech9
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You will need a scan tool that can monitor live pedal position sensor voltage. Sorry I did miss understand I thought a different mass airflow sensor started the engine up.

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Tuesday, October 9th, 2012 AT 5:12 PM
  • Tiny
  • saturntech9
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  • 29,451 posts

So have you checked actual fuel pressure and for a injector pulse?

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Tuesday, October 9th, 2012 AT 5:15 PM
  • Tiny
  • CptTrevor
  • Member

Out in a new fuel pump and if I squirt starting fluid into throttle body the car starts and run for a while and accelerates like normal and then stop as soon as fluid is burnt off. I keep getting the same code for TPS sensor. So I loosen the screws and moved it slightly and the car started and ran briefly. I ordered a new TPS and tomorrow I would replaced the original. I am putting my trust in the scanner. Cpttrevor

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Thursday, October 11th, 2012 AT 2:30 AM

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