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1990 Sunbird Le engine stalls when under losd unless I pump the gas.

(1990 Pontiac Sunbird)
in Bothell, WA on September 18, 2016
I'm trying to find out what might cause the fuel injector in the throttle body to not give enough fuel occasionally when the engine is under load. Feathering the gas will keep it going sometime so I think it's fuel-related. Is there a fuel filter in the throttle body under the fuel injector maybe clogged? Vacuum hoses look fine. Does it have a ECR valve?
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of Wrench, Inc - Seattle Metro Area on September 18, 2016
We'd be happy to take a look at it for you. Wrench is proving FREE on site diagnostic services right now. To book go to www.getwrench.com.
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on September 18, 2016
What is an 'ECR valve? TEST fuel PRESSURE with a gauge , and if it's easier , put on a new filter anyway. IF you change the fuel filter and the problem is still there , you haven't really hurt anything.
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