FSM for 88 b12 or help troubleshooting tbi issue

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mys13240
Posts: 111
Joined: Fri Dec 12, 2003 8:50 pm
Car: 1990 240sx hatchback(for sale) 1989 240sx hatchback (KAT PRoject)

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I'm looking for a Factory Service Manual for an '88 sentra. I'm thrying to troubleshoot my problem. I don't want to throw parts at it. It will idle but won't rev past about 2500 rpm's and is basically not getting fuel and you have to keep giving it just a little throttle or it will choke out and die. it's not missing though. I don't know anything about this stupid TBI s***. Its getting good pressure into the throttle body and the filter is new and so is the pump(fix one thing and something else brakes). I thought it was an ignition issue at first because the contacts on the inside of the cap and on the rotor were corroded. I filed them clean and it ran fine when i pull it back together. I then did a complete tune up the next day. Cap, rotor, wires, plugs, air filter, fuel filter. Now it's running the same. I thought that maybe the new stuff was bad so I swappeed it back to the old parts but to no good. I put the new stuff back on. If you have a FSM for this or know about these tbi ga16e setups and can help I do appreciate it. I'm thinking it's the injector, but want to be 100% before I take it apart and buy a new injector. I was gonna try and sell the car but it started acting out. Its worth more running, but i don't want to put too much more in it.


jonusb2
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Joined: Mon Aug 30, 2010 1:33 am

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mys13240
Posts: 111
Joined: Fri Dec 12, 2003 8:50 pm
Car: 1990 240sx hatchback(for sale) 1989 240sx hatchback (KAT PRoject)

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jonusb2 WTF is that about?

Well I replaced the injector. It still wouldn't idle or rev past 2500rpm. I thought it might be the tps. I unplugged the tps and it idled smooth but wouldn't rev past 2500rpm still. I replaced tps and and now it will idle but still won't rev past 2500rpm. I then checked the troble codes on the ecm. It is throwing a code 12 which is air flow meter. I pulled it out and have called every place I know off trying to find one but have had no luck. Anybody have one or know where I can get one? Found one on ebay but the connector only has 5 pins where mine has 6 pins.

This is one on ebay
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This is what mine looks like
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