89 ford probe 2.2

keeter57 · 10-08-2006, 08:14 PM

We have a probe it is all stock we run as a race car.The last time we ran it it started dieing at 4500 rpms consistantly!Since then I have changed the mass air sensor,fuel pump,distrib.,fuel filter.Still no change.We can set in the garage and run the eng up to 4000 rpms and it is smooth and fine but as soon as it hits 4500 it dies,it will start right back as soon as we hit the starter.I am stumped,and dont know what else to do.Can someone give some ideas please?

**Midnight Tech** · 10-08-2006, 08:44 PM

Acting almost like a rev limiter is on it?

keeter57 · 10-08-2006, 09:20 PM

From what I am told,there is a rev limiter in the computer but it only makes the eng cut out at a lot higher rpm to keep from blowing the eng.This is acting like you turn off the ignition.

**Midnight Tech** · 10-08-2006, 11:19 PM

Ahhh....researching....

daamon_vexion · 10-09-2006, 08:57 AM

have you checked your coil? it could have gone bad, also check the plugs, plug wires and make sure they arent corroded...

keeter57 · 10-09-2006, 04:32 PM

Changed the coil---same response.It has new plugs and wires,rotor button and cap.

**JamesO** · 10-09-2006, 05:54 PM

Need to isolate if the problem is fuel or ignition!

Starting fluid works well, just be careful.

Also put a Voltmeter on the battery to see if the charging Voltage starts to climb over 16 Volts at higher RPM.

JamesO

keeter57 · 10-09-2006, 07:14 PM

definetly fuel,used ether as soon as it died, give it a shot, and it fired right back up.As for the voltage,when the car is idleing it is showing about 12 volts and when it gets to 4500 it is showing 13.6 volts.Baffles the fire out of me!!!!!!!

**JamesO** · 10-09-2006, 07:23 PM

Now that you have determined it is fuel, you need to find out why the fuel is shutting down.

Is the fuel pump shutting off or is fuel delivery shutting off?

Maybe there is an oil pressure cut out for the fuel pump that is shutting the fuel pump power off?

JamesO

**JamesO** · 10-09-2006, 07:28 PM

http://www.autozone.com/servlet/UiBr...3d80144d2c.jsp

Might be useful?

JamesO

keeter57 · 10-09-2006, 07:31 PM

I feel like fuel delivery is shutting down because we put a gauge on it and it held pressure as it died and even after it was dead.

keeter57 · 10-10-2006, 09:43 PM

WILL LOW VOLTAGE CAUSE THIS PROBLEM? I found some bad wires on the alt. and the plug was not in all the way,I fixed all of this and now it is charging 14.6 volts instead of 12.2 and now it is dieing at 5500 instead of 4500.I am charging the system over night to get max power.Could low voltage cause this problem?

**JamesO** · 10-11-2006, 05:26 AM

Low Voltage could cause some problems as well.

12.2 Volts is really a dead or bad battery. 12.6 should be a normal 12 Volt battery Voltage at full charge.

Any Voltage outside of the normal expected window could cause strange and unexpected problems.

Also it may be possibly if the alternator is putting out too much AC content, this could cause issues. If you have a bad battery, you may not get good filtering.

Try putting a different battery in, or hooking up jumper cables to a good battery or another car to have an additional load on the alternator.

Check grounds or add additional ones.

Check other connectors, as at these RPM's vibration could cause problems as well.

Good luck, seems like you are making some progress.

JamesO

keeter57 · 10-11-2006, 03:18 PM

The car has a brand new batt on it but I will check all the connections and grounds for more problems,maybe we can gain a little more on it.thanks for all of your help and responses,I will let you know on my progress.

keeter57 · 10-11-2006, 08:27 PM

Well we thought our progress was improving but we started messing with it today and it still dies at 4700----but now if you pump the gas as it is dieing it will begin to run again----beats the hell outa me!!!!!!!!!!!

10-08-2006, 08:14 PM	#1 (permalink)
keeter57 Registered User Join Date: Oct 2006 Posts: 8 OS: xp	89 ford probe 2.2 We have a probe it is all stock we run as a race car.The last time we ran it it started dieing at 4500 rpms consistantly!Since then I have changed the mass air sensor,fuel pump,distrib.,fuel filter.Still no change.We can set in the garage and run the eng up to 4000 rpms and it is smooth and fine but as soon as it hits 4500 it dies,it will start right back as soon as we hit the starter.I am stumped,and dont know what else to do.Can someone give some ideas please?

10-08-2006, 08:44 PM	#2 (permalink)
Midnight Tech Admin/Head GreaseMonkey/Igor's alter ego/Grand Exalted PoohBah Join Date: Dec 2001 Location: SC Posts: 2,924 OS: Windows XP Home/Pro SP3/Windows 98SE/Fedora Core 6/RH 7.2 with Autopoint/TAMS II	Acting almost like a rev limiter is on it? __________________ Please post all questions in the appropriate forum. Questions sent by email or PM will not be answered. Sharing my life...with my Imzadi! Interested in Trek gaming? Check out the Dynaverse! Proud supporter of the Carolinas Aviation Museum. If we have helped you in any way, please donate to keep TSF up and running!

10-08-2006, 11:19 PM	#4 (permalink)
Midnight Tech Admin/Head GreaseMonkey/Igor's alter ego/Grand Exalted PoohBah Join Date: Dec 2001 Location: SC Posts: 2,924 OS: Windows XP Home/Pro SP3/Windows 98SE/Fedora Core 6/RH 7.2 with Autopoint/TAMS II	Ahhh....researching.... __________________ Please post all questions in the appropriate forum. Questions sent by email or PM will not be answered. Sharing my life...with my Imzadi! Interested in Trek gaming? Check out the Dynaverse! Proud supporter of the Carolinas Aviation Museum. If we have helped you in any way, please donate to keep TSF up and running!

10-09-2006, 08:57 AM	#5 (permalink)
daamon_vexion Resident Soldier Join Date: Aug 2006 Location: Iraq (temp) Wyoming Posts: 560 OS: Windows XP Media Center My System	have you checked your coil? it could have gone bad, also check the plugs, plug wires and make sure they arent corroded... __________________ *And the Infantry Sayeth unto the Lord "Thou hast made us the Queen of battle, and Artillery the King, surely thou knowest what the King does to his Queen?" And the Lord replyeth, "Right On!"*

10-11-2006, 05:26 AM	#13 (permalink)
JamesO Join Date: Mar 2005 Location: Fairfax, VA USA Posts: 2,289 OS: 98SE, W2k Pro, XP Pro	Low Voltage could cause some problems as well. 12.2 Volts is really a dead or bad battery. 12.6 should be a normal 12 Volt battery Voltage at full charge. Any Voltage outside of the normal expected window could cause strange and unexpected problems. Also it may be possibly if the alternator is putting out too much AC content, this could cause issues. If you have a bad battery, you may not get good filtering. Try putting a different battery in, or hooking up jumper cables to a good battery or another car to have an additional load on the alternator. Check grounds or add additional ones. Check other connectors, as at these RPM's vibration could cause problems as well. Good luck, seems like you are making some progress. JamesO Last edited by JamesO; 10-11-2006 at 05:29 AM.

10-08-2006, 09:20 PM	#3 (permalink)
keeter57 Registered User Join Date: Oct 2006 Posts: 8 OS: xp	From what I am told,there is a rev limiter in the computer but it only makes the eng cut out at a lot higher rpm to keep from blowing the eng.This is acting like you turn off the ignition.

10-09-2006, 04:32 PM	#6 (permalink)
keeter57 Registered User Join Date: Oct 2006 Posts: 8 OS: xp	Changed the coil---same response.It has new plugs and wires,rotor button and cap.

10-09-2006, 05:54 PM	#7 (permalink)
JamesO Join Date: Mar 2005 Location: Fairfax, VA USA Posts: 2,289 OS: 98SE, W2k Pro, XP Pro	Need to isolate if the problem is fuel or ignition! Starting fluid works well, just be careful. Also put a Voltmeter on the battery to see if the charging Voltage starts to climb over 16 Volts at higher RPM. JamesO

10-09-2006, 07:14 PM	#8 (permalink)
keeter57 Registered User Join Date: Oct 2006 Posts: 8 OS: xp	definetly fuel,used ether as soon as it died, give it a shot, and it fired right back up.As for the voltage,when the car is idleing it is showing about 12 volts and when it gets to 4500 it is showing 13.6 volts.Baffles the fire out of me!!!!!!!

10-09-2006, 07:23 PM	#9 (permalink)
JamesO Join Date: Mar 2005 Location: Fairfax, VA USA Posts: 2,289 OS: 98SE, W2k Pro, XP Pro	Now that you have determined it is fuel, you need to find out why the fuel is shutting down. Is the fuel pump shutting off or is fuel delivery shutting off? Maybe there is an oil pressure cut out for the fuel pump that is shutting the fuel pump power off? JamesO

10-09-2006, 07:28 PM	#10 (permalink)
JamesO Join Date: Mar 2005 Location: Fairfax, VA USA Posts: 2,289 OS: 98SE, W2k Pro, XP Pro	http://www.autozone.com/servlet/UiBr...3d80144d2c.jsp Might be useful? JamesO

10-09-2006, 07:31 PM	#11 (permalink)
keeter57 Registered User Join Date: Oct 2006 Posts: 8 OS: xp	I feel like fuel delivery is shutting down because we put a gauge on it and it held pressure as it died and even after it was dead.

10-10-2006, 09:43 PM	#12 (permalink)
keeter57 Registered User Join Date: Oct 2006 Posts: 8 OS: xp	WILL LOW VOLTAGE CAUSE THIS PROBLEM? I found some bad wires on the alt. and the plug was not in all the way,I fixed all of this and now it is charging 14.6 volts instead of 12.2 and now it is dieing at 5500 instead of 4500.I am charging the system over night to get max power.Could low voltage cause this problem?

10-11-2006, 03:18 PM	#14 (permalink)
keeter57 Registered User Join Date: Oct 2006 Posts: 8 OS: xp	The car has a brand new batt on it but I will check all the connections and grounds for more problems,maybe we can gain a little more on it.thanks for all of your help and responses,I will let you know on my progress.

10-11-2006, 08:27 PM	#15 (permalink)
keeter57 Registered User Join Date: Oct 2006 Posts: 8 OS: xp	Well we thought our progress was improving but we started messing with it today and it still dies at 4700----but now if you pump the gas as it is dieing it will begin to run again----beats the hell outa me!!!!!!!!!!!