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 Post subject: 1995 swift 1.3 sohc
PostPosted: Tue Mar 12, 2013 9:13 pm 
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Joined: Tue Mar 12, 2013 8:53 pm
Posts: 11
Location: Vancouver
Having some issues with a car i got. Runs, kinda stumbles a bit sometimes. But runs and is driveable. Getting a code for the map sensor, had a spare swapped it in same issue same code. Checked voltage at the sensor and all seems good but i dont seem to be getting any vacuum to the sensor? if i apply vacuum the car runs better. Smells like its running rich the way it is now. Timing looks like its on, previous owner did the belt. I tore it all down today to check. Pulled the belt off cause i thought the cam might be 180 degrees off but it actually seemed ok. I keep reading that the down pin on the cam should be facing down towards the crank, but mine goes up. If i face it down the distributor is pointing at #4 which cant be right. Thats the only thing i could think of as to why no vacuum. I tried blowing in the vacuum line going to the map sensor and i hear it in the throttle body so im assuming nothing there is clogged. Dont have a vacuum gauge but it seems like i get zero vacuum from that hose. It failed emissions testing for hc and co, has a new exhaust and cat. Havent done a tune up yet cause i wanted to spend as little as possible on this car to see if i can get it running right. Thanks for the help.


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 Post subject: Re: 1995 swift 1.3 sohc
PostPosted: Tue Mar 12, 2013 9:57 pm 
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Joined: Fri Feb 13, 2009 7:10 pm
Posts: 880
Location: Vancouver, WA
Vancouver wa or canadia?

Fwiw I'm an emissions specialist for repairs in Washington state

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98 swift 1.6 16v swap
03 cobra bolt ons
97 3000gt vr4 e85, high comp, bolt ons
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 Post subject: Re: 1995 swift 1.3 sohc
PostPosted: Tue Mar 12, 2013 11:15 pm 
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Joined: Tue Mar 12, 2013 8:53 pm
Posts: 11
Location: Vancouver
Vancouver canada, i was an emissions tech when i lived in the states because, sucks not having access to any equipment anymore.


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 Post subject: Re: 1995 swift 1.3 sohc
PostPosted: Tue Mar 12, 2013 11:25 pm 
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Joined: Sat Oct 15, 2011 5:03 am
Posts: 204
Location: lake stevens, wa
Timing is fine. The can rotates half the speed of crank so dowel up or down doesn't matter, just rotate crank one more rpm and timing will line up. Did you pull the battery cables to reset the ecu?

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 Post subject: Re: 1995 swift 1.3 sohc
PostPosted: Tue Mar 12, 2013 11:38 pm 
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Joined: Tue Mar 12, 2013 8:53 pm
Posts: 11
Location: Vancouver
Timing seems dead on then, why would i seem to be getting no vacuum though? I'll recheck distributor timing tomorrow. Could i have some massive vacuum leak maybe? intake? is that common at all on these? It fires right up, idles a bit low, then idle dips down then comes back up higher.


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 Post subject: Re: 1995 swift 1.3 sohc
PostPosted: Tue Mar 12, 2013 11:38 pm 
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Joined: Tue Mar 12, 2013 8:53 pm
Posts: 11
Location: Vancouver
No never pulled the cables to reset the ecu


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 Post subject: Re: 1995 swift 1.3 sohc
PostPosted: Wed Mar 13, 2013 1:18 am 
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Joined: Fri Feb 13, 2009 7:10 pm
Posts: 880
Location: Vancouver, WA
Start spraying with the brake cleaner. I'm not sure how close my 96 is to the 95s but ill take a look at it tomorrow

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98 swift 1.6 16v swap
03 cobra bolt ons
97 3000gt vr4 e85, high comp, bolt ons
too many others to list


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 Post subject: Re: 1995 swift 1.3 sohc
PostPosted: Wed Mar 13, 2013 1:24 am 
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Joined: Tue Mar 12, 2013 8:53 pm
Posts: 11
Location: Vancouver
yeah that was the plan, i seem to think it might be somewhere on the back of the engine. Really need a gauge i guess. No extra $ right now though.


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 Post subject: Re: 1995 swift 1.3 sohc
PostPosted: Thu Mar 14, 2013 4:24 pm 
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Joined: Tue Mar 12, 2013 8:53 pm
Posts: 11
Location: Vancouver
sprayed around with brake clean, nothing, seem to be getting great vacuum at the booster and pcv and actually seems to be positive pressure coming out of the hose that goes to the map. I pulled the throttle body off, and the one gasket above the heater looked like it was upside down cause on hole was blocked so i thought that was my problem, started it back up, same problem still. not much if any vacuum off the small front hose on the throttle body that goes to the egr solenoid. Egr seems to be sealing closed, but ill pull it off and check. Any other suggestions?


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 Post subject: Re: 1995 swift 1.3 sohc
PostPosted: Thu Mar 14, 2013 5:48 pm 
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Joined: Tue Mar 12, 2013 8:53 pm
Posts: 11
Location: Vancouver
EGR gasket was missing, put a new one in , also found the ptc fuse blown , believe thats for the throttle body heater. Replaced it and it just blew again. Running now but smoking?? whiteish, smells pretty bad, doesnt smell like coolant to me. Smells super rich. Not sure what else to do with this car. Still getting a code 31 pressure sensor circuit, not sure if thats related to the little vacuum going to the map? Compression was between 185 - 190 on all


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 Post subject: Re: 1995 swift 1.3 sohc
PostPosted: Thu Mar 14, 2013 7:59 pm 
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Joined: Fri Feb 13, 2009 7:10 pm
Posts: 880
Location: Vancouver, WA
Have you tried replacing the line leaving the filter out?

Image

Yes its been sitting.

Continuity between the map and ecu good? Also (probably unrelated to your issue) I've seen in many Nissans the injector o-rings fail and just dump fuel

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98 swift 1.6 16v swap
03 cobra bolt ons
97 3000gt vr4 e85, high comp, bolt ons
too many others to list


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 Post subject: Re: 1995 swift 1.3 sohc
PostPosted: Sun Mar 17, 2013 3:10 pm 
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Joined: Tue Mar 12, 2013 8:53 pm
Posts: 11
Location: Vancouver
havent tried that yet, ill also try to find a wiring diagram so i can check the wiring between the ecu and map. Gonna go look at it some more today and ill see what i can find.


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 Post subject: Re: 1995 swift 1.3 sohc
PostPosted: Mon Mar 18, 2013 1:10 am 
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Joined: Tue Mar 12, 2013 8:53 pm
Posts: 11
Location: Vancouver
Tried that today, no change. I still seem to be getting little to no vacuum from the port on the throttle body. Cant seem to figure out why. Same with the vacuum connection on the front of the trottle body that goes to the egr. If i use a pump and apply -19 or so to the map, the car seems to run way smoother. I found a few issues today, nothing that seems to fix anything though. The wiring diagram i have seems to not be correct for my car. Says the map should be lt/blk lt grn/red and lt grn for wiring, my signal wire is orange or red and black. I found one other wire in the main harness that looks like its been repaired before and not well, looks like a orange/yellow wire, not sure what thats for.


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 Post subject: Re: 1995 swift 1.3 sohc
PostPosted: Mon Mar 18, 2013 1:33 pm 
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Joined: Fri Feb 13, 2009 7:10 pm
Posts: 880
Location: Vancouver, WA
wonder if you're a tooth off on cam timing causing an actual low vacuum concern...


iirc yes the dowel is supposed to be pointing down.

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98 swift 1.6 16v swap
03 cobra bolt ons
97 3000gt vr4 e85, high comp, bolt ons
too many others to list


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 Post subject: Re: 1995 swift 1.3 sohc
PostPosted: Mon Mar 18, 2013 2:07 pm 
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Joined: Tue Mar 12, 2013 8:53 pm
Posts: 11
Location: Vancouver
Thing is with the dowel pointing down, if I pull the cap off the rotor is facing #4 cylinder. Timing seems dead on to me, but the cam isn't the easiest thing to get perfect. The mark on the plate behind the belt is tough to line up. I thought it was off a tooth also that's why I pulled the belt off to check.


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 Post subject: Re: 1995 swift 1.3 sohc
PostPosted: Mon Mar 18, 2013 3:49 pm 
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Joined: Fri Feb 13, 2009 7:10 pm
Posts: 880
Location: Vancouver, WA
i went out and looked at mine for a bit. no way to put the rotor 180 off. would have pulled the distributor to see if it can be put in but left my t40 at work.

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98 swift 1.6 16v swap
03 cobra bolt ons
97 3000gt vr4 e85, high comp, bolt ons
too many others to list


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 Post subject: Re: 1995 swift 1.3 sohc
PostPosted: Mon Mar 18, 2013 4:18 pm 
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Joined: Tue Mar 12, 2013 8:53 pm
Posts: 11
Location: Vancouver
Yeah I checked that too. Maybe the cam gear is wrong or something? Someone else owned this car and I got it like this.


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