[Guest]

I have a 1988 Nissan Sentra with a E16 Injected motor. (Throttle Body)


The problem is when the car is running under a load the engine seems
to be starving for gas or either has a bad spark problem. When I rev
the car sitting still the engine revs great and smooth. Then when I
take off the engine runs very rough and with anything more than half
gas pedal the car falls on it's face.

I had the engine rebuilt about 30K ago. I was having this problem
before rebuild but never this bad. Also the car is getting very bad
gas mileage. 14 mls. To a gallon. I was getting around 26 to 28

I can't figure out if this is a spark problem or a fuel problem. I
replaced the very expensive fuel pump with no luck fixing the problem.

Thank for any help or recommendations of where to get help. This
seems to be a problem that could get very expensive just by replacing
parts until it gets fixed.

My e-mail is [email protected]

 

[RiceBox]

Run some fuel injector cleaner through a tank of gas. You might also consider doing a general tune-up. Plugs, wires, possibly distibutor cap, etc...

 

[Guest]

have done all of those things with Nissan parts with little help to the problem. I am really stumped.

 

[blownb310]

Run some fuel injector cleaner through a tank of gas. You might also consider doing a general tune-up. Plugs, wires, possibly distibutor cap, etc...

Our beloved Ricebox is only trying to help, but in a case like this, you'll need to ask a Nissan master tech. I happen to know one, and asked him about it. He said he can nail this one on the first try. You have a bad airmass meter. They are quite common. It is located on the pass side of the throttle body, and is attached with two #2 phillips head screws. The only other component you'll need to remove to get at the airmass meter, is the throttle sensor [also two phillips head screws]. Mark and remember the exact position of the throttle sensor before you loosen or remove it. That way you can put it back, without messing up the adjustment. Let us know if we are right on this one. I'm sorry you wasted your money on a fuel pump. Next time, give us a shout here first!

 

[Crazy-Mart]

common bad air flow meter things !!

bad accelleration
cannot get past 2650 rpm or it will shut off the injector !!
bad gas milage !! (too much fuel)

Than your sure it is the AFM... if it isnt getting to 3000rpm...pulling, its the AFM....

 

[AVERAGE]

carbed motor

hey , what about a carbed motor. what would cause it to stall out at lights after replacing the plugs, wires , o2 sensor , fuel pump( engine one, not actual tank pump). i ve even had the timing set and reset and im still having problems. someone told me it might be my float in the carb. does anyone have any answers for me.

 

[RiceBox]

Isn't the '87 injected too?? It thought they only used carbs until '86

 

[blownb310]

Isn't the '87 injected too?? It thought they only used carbs until '86

*****All '87 US spec. B12 sedans were carbureted. Sport Coupes, 4WD wagons, and Pulsars were TBI.

 

[blownb310]

Re: carbed motor

hey , what about a carbed motor. what would cause it to stall out at lights after replacing the plugs, wires , o2 sensor , fuel pump( engine one, not actual tank pump). i ve even had the timing set and reset and im still having problems. someone told me it might be my float in the carb. does anyone have any answers for me.

*****As you have the hopeless chockless carb, it can be many things. I cannot nail that one on the first try. Too many variables. Sometimes the Fuel Shut-off solenoid loses it's ground from the ECU. In that case, you can run your own ground to it, to solve the problem. By the way, carbureted Sentras [B11 or B12] don't have an in-tank fuel pump. They only have the mechanical one on the engine.

 

[AVERAGE]

?donde?

where exactly is the fuel shut off solenoid at and can u walk me threw it. step by step , maybe

 

[Guest]

Well solved the problem..... I just bought a Nissan Frontier King Cab. The Sentra was my wifes car in high school and I took it over as a work car. The Sentra has 168K on her. I think I will call one of those places that well take your car as a tax deduction.

Thanks for all the help......

 

[LittlebittaContact]

another one bites the dust.

my car did the exact same thing (exact same engine)

mass air flow sensor.

 

[Guest]

well I changed the Air Flow Meter too. No help to the problem. I just couldn't see putting anymore money in her.

 

[LittlebittaContact]

Did you check the ecu for trouble codes?

 

[Guest]

it came back with 5 greens and 5 reds. this means no problems. Code 55

 

[LittlebittaContact]

yup...ok then im lost

 

[Guest]

ya, the only other thing I was thinking of doing was to go to a junkyard and try to buy the hole intake and computer out of another car. I talked to an import shop in our town and they said I could get $1000 dollars into parts and still not have it fixxed. I was lost too.

 

[LittlebittaContact]

its hard to decipher a problem when you dont see broken pieces.

 

[Crazy-Mart]

have you tried reseting the computer ????..... it could just do it !!... lot of erratic problem could be fix like that when you changed parts and stuff.... just unplug the batterie for 5 minutes... and plug it back.. start the car again let it warm up on idle then shut it down and after that start it again ... should be a bit better !!

 

[Alchemy]

sorry for bringing up an old post , but i have the exact same problem with my 87 e16i and ive brought it to nissan dealership and they couldnt fix it. they didnt know what it was.can anyone help?