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89 L98, idles for 3 seconds then...

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Old Aug 13, 2011 | 02:09 PM
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89 L98, idles for 3 seconds then...

Stalls. Fuel pump pressure is 42psi @ prime, goes down to 37psi @ idle then stalls. Just like it runs out of gas. I can hear the fuel pump run after start up. I've put new injectors in it 4000 miles ago from a vendor here. There is a Walbro pump in the tank with about 3000 miles on it.
Man I'm lost. Any Ideas?
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Old Aug 14, 2011 | 09:23 AM
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Re: 89 L98, idles for 3 seconds then...

Ohm'd the injectors, 14.9 for all. If I "pump" the throttle pedal it will stay running, if I let it idle for a couple seconds it stalls. TPS problem? Going to ohm it next.
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Old Aug 15, 2011 | 07:01 PM
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Re: 89 L98, idles for 3 seconds then...

Turned out being MAF sensor.
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Old Aug 15, 2011 | 07:28 PM
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From: Detroit, Michigan
Car: 1989 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Re: 89 L98, idles for 3 seconds then...

Originally Posted by jbta99
Turned out being MAF sensor.
Yep. MAF's happen.
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