Mechanics

CAR WON'T START BUT CRANKS

2004 Kia Amanti • 120,000 miles

My Amanti wont start it cranks no start. I have check plugs change fuel pump, check fuel pump relay, check coils good spark very strong. It would try to start but it would die out. If I squirt a little starting fluid into throttle body it would start up and run-until it burns off. This only happen after I stop and put gas in my car it was running fine before. I stop turn car off put in gas try to start very hard engine running with now power.I started to drive home and it got better and run nice after a few minutes. I parked in the driveway and it would not start for three days now. Run code check it is giving me a code for the MAF sensor could this prevent the car from starting? I thought it was the CPS but no codes for that can you shed some light. Cpttrevor
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CptTrevor
October 5, 2012.



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

Tiny
CptTrevor
Oct 8, 2012.
I took my MAF sensor out and put it in another car with same engine car started right up.

Tiny
CptTrevor
Oct 8, 2012.
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.

Saturntech9
Oct 8, 2012.
Your supposed to use a scan tool to monitor that feed back voltage thats why they dont list wire colors terminals etc.

Saturntech9
Oct 8, 2012.
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

Tiny
CptTrevor
Oct 8, 2012.
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.

Saturntech9
Oct 9, 2012.
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.

Tiny
CptTrevor
Oct 9, 2012.
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.

Saturntech9
Oct 9, 2012.
So have you checked actual fuel pressure and for a injector pulse?

Saturntech9
Oct 9, 2012.
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

Tiny
CptTrevor
Oct 11, 2012.
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