Doesn't Stay running???

943kgt · 02-04-2007, 07:02 AM

ok i have a little issue with my 95 pickup 22re 4wd. After it sits over night i go to start it and it starts, rpms jump up to a little under 2 grand like it should, runs for about a second and a half and then shuts off unless i keep my foot on the gas for about 30 seconds. Once ive done that its fine for the day. Even if its parked outside in the freezing cold. Any insight on to what is the cause of this would be awesome. thanks in advance!

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943kgt · 02-04-2007, 12:49 PM

ok this problem has graduated to: Wont stay running no matter what i do???? it seems like its a fuel delivery problem but i dont even know where to begin.

CyMoN · 02-04-2007, 01:04 PM

IAC idle air control
http://www.misterfixit.com/idle.htm

sometimes you can clean it out with electric parts cleaner and it will run for a few months more just changed one on Friday for a friend .

keithguts · 02-04-2007, 01:06 PM

Quote:

Originally Posted by 943kgt

ok i have a little issue with my 95 pickup 22re 4wd. After it sits over night i go to start it and it starts, rpms jump up to a little under 2 grand like it should, runs for about a second and a half and then shuts off unless i keep my foot on the gas for about 30 seconds. Once ive done that its fine for the day. Even if its parked outside in the freezing cold. Any insight on to what is the cause of this would be awesome. thanks in advance!

Maby it's your dashpot.

943kgt · 02-04-2007, 02:48 PM

ok found out it has to be something wrong with the mass air flow sensor. i jumped the Fp with the B+ in the diagnostic box and the truck starts and runs like a champ! looked at all the wiring, no broken wires and the connector was fine so anyone got a mass air flow sensor?

CyMoN · 02-04-2007, 03:34 PM

try cleaning it first

943kgt · 02-04-2007, 04:29 PM

its not a matter of it reading correctly. theres something in the mass air flow sensor that electronically tells the ecu that the truck is not running so it cuts power to the fuel pump kind of like if the truck gets into an accident or if it is rolled over

drguitarum2005 · 02-04-2007, 04:33 PM

Quote:

Originally Posted by 943kgt

its not a matter of it reading correctly. theres something in the mass air flow sensor that electronically tells the ecu that the truck is not running so it cuts power to the fuel pump kind of like if the truck gets into an accident or if it is rolled over

try cleaning it first. if its dirty, it wont function right and yours isnt functioning right. why not clean it for like $3 versus buying a new one if you dont know 100% you have to yet?

02-04-2007, 01:04 PM	#3 (permalink)
CyMoN Registered User Join Date: Jul 2006 Location: INDIANA Posts: 2,164	IAC idle air control http://www.misterfixit.com/idle.htm sometimes you can clean it out with electric parts cleaner and it will run for a few months more just changed one on Friday for a friend . __________________ my rigs 89 4runner 1989 4runner v6 5 speed everything factory +4susplift running bfg 31s and a aux gas tank and more aux lights than needed 86 pickup 1986 stock pickup 22r 31.10 BFG ATs flatbed a sad day for the 4runner "One moment of patience may ward off great disaster. One moment of impatience may ruin a whole life."

02-04-2007, 03:34 PM	#6 (permalink)
CyMoN Registered User Join Date: Jul 2006 Location: INDIANA Posts: 2,164	try cleaning it first __________________ my rigs 89 4runner 1989 4runner v6 5 speed everything factory +4susplift running bfg 31s and a aux gas tank and more aux lights than needed 86 pickup 1986 stock pickup 22r 31.10 BFG ATs flatbed a sad day for the 4runner "One moment of patience may ward off great disaster. One moment of impatience may ruin a whole life."

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02-04-2007, 12:49 PM	#2 (permalink)
943kgt Registered User Join Date: Oct 2006 Posts: 99	ok this problem has graduated to: Wont stay running no matter what i do???? it seems like its a fuel delivery problem but i dont even know where to begin.

02-04-2007, 02:48 PM	#5 (permalink)
943kgt Registered User Join Date: Oct 2006 Posts: 99	ok found out it has to be something wrong with the mass air flow sensor. i jumped the Fp with the B+ in the diagnostic box and the truck starts and runs like a champ! looked at all the wiring, no broken wires and the connector was fine so anyone got a mass air flow sensor?

02-04-2007, 04:29 PM	#7 (permalink)
943kgt Registered User Join Date: Oct 2006 Posts: 99	its not a matter of it reading correctly. theres something in the mass air flow sensor that electronically tells the ecu that the truck is not running so it cuts power to the fuel pump kind of like if the truck gets into an accident or if it is rolled over