1983 Nissan Maxima Stalls on Gas

1983 NISSAN MAXIMA
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ESGAROTH
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My car will start and idle but pressing on the gas will kill it. The idle doesnt sound too bad but not as smooth as it was before I had any problems.
Ive done a compression check and after 240k miles it still has 160 - 180 compression in all 6 cylinders.
Fuel pressure is about 35 psi while running.
Ive checked that all spark plugs are getting a spark.
I havnt found any vacuum leaks but they could still exist.
what should I do next?
Jan 19, 2007 at 4:23 PM
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RASMATAZ
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Type of fuel system: Carb or EFI

Also check the Air flow Meter and for a clogged-up exhaust system.

BTW when was the last tune-up done.
Jan 19, 2007 at 11:41 PM
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ESGAROTH
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fuel injected.
less than a year ago I put in new plugs and wires.
Replaced the fuel pump around that time as well so the filter is pretty new. o2 sensor is only a few months old.
Jan 20, 2007 at 2:34 PM
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RASMATAZ
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Try this open up the EGR if it has one-clean it out real good-now disable the EGR by removing its connector or plug the vacuum hose-then road test it.
Jan 20, 2007 at 4:21 PM
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ESGAROTH
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well the egr is rusted to the intake so its going to take some time to get it off. I was also looking at the air flow meter today. I pulled the big air hose off of the air flow meter and ran the engine. It ran fine as long as the door was shut. I reached inside and pushed the door open, if I went too far the engine would slow down and eventually stop just like it has been doing. So does this mean that the engine is sucking too much air in causing the door to open too far? I dont know how this is suposed to work but perhaps offers a clue to someone more knowledgable than I am.

I think it passes the resistance tests with an ohm meter but I cant really tell, I think my volt meter is screwy. Or I just dont know how to use it.
Jan 21, 2007 at 12:16 PM
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RASMATAZ
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[quote:bc54fc7271="Esgaroth"]well the egr is rusted to the intake so its going to take some time to get it off. I was also looking at the air flow meter today. I pulled the big air hose off of the air flow meter and ran the engine. It ran fine as long as the door was shut. I reached inside and pushed the door open, if I went too far the engine would slow down and eventually stop just like it has been doing. So does this mean that the engine is sucking too much air in causing the door to open too far? I dont know how this is suposed to work but perhaps offers a clue to someone more knowledgable than I am.

I think it passes the resistance tests with an ohm meter but I cant really tell, I think my volt meter is screwy. Or I just dont know how to use it.[/quote:bc54fc7271]

Either you clean it up real good or replace it
Jan 21, 2007 at 12:55 PM

Suggested Repair

Clean the air flow meter thoroughly or replace it. Also clean the EGR valve if it can be removed, then temporarily disable it by unplugging its connector or plugging the vacuum hose and road-test.

Conversation Summary

A 1983 Nissan Maxima starts and idles but stalls when the throttle is opened. Compression, fuel pressure, and spark were checked, and plugs, wires, the fuel pump, and the O2 sensor were recently replaced. The expert advised checking the air flow meter and exhaust restriction, then cleaning and temporarily disabling the EGR for a road test. After the owner found that opening the air flow meter door too far stalled the engine, the expert recommended cleaning the meter thoroughly or replacing it.

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