fresh rebuild wont start ... please help

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neongreenglo
Posts: 183
Joined: Thu Dec 02, 2004 12:45 pm
Car: 90 240sx fastback

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ok my first ? will not having the knock sensor hooked up cause a no start?.... well actually thats my only ? for now lol thaught it was a stuck injector but just swapped the rail and injectors from my spare motor...and still no luck


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velocityfactor
Posts: 25
Joined: Fri Feb 01, 2008 7:46 am
Car: Saab 9000 2.3T
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I doubt the Knock sensor will cause such an issue. First, have you checked and rechecked your timing?.. Stupid question, but I'm assuming it's cranking, right? Have you tested that you're getting BOTH spark AND fuel?.. make sure your Cam position sensor is in the right place. From there, make sure your wire coil connections are in the right order, same with your injector connectors. Make sure your igniter is hooked up properly, AMM, etc. Check and recheck all connection.s Also, are these the stock injectors(i'm assuming so if you swapped a spare set from another motor)

Let me know where you've gotten to!

Tristan

neongreenglo
Posts: 183
Joined: Thu Dec 02, 2004 12:45 pm
Car: 90 240sx fastback

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yeah i'm going to double check my dizzy timing tonight. yes its stock injectors all my wires are hooked up and my wires are all right i used the noid light and all my injector pulses are correct. i'm goin to fight with it again tonight so hopefully i can get it running...oh and i'm 100% sure my cams are correct lol

gthammers
Posts: 84
Joined: Tue Aug 31, 2004 5:08 am
Car: 1991 coupe, 1994 coupe

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I did this once --

Are your plug wires counted 1-4 in the right direction??

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240sxmech
Posts: 166
Joined: Tue Feb 20, 2007 5:59 pm
Car: 90 240sx

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make sure your getting fuel, could have a clogged filter or pump not working.....hit us back with the new info...

neongreenglo
Posts: 183
Joined: Thu Dec 02, 2004 12:45 pm
Car: 90 240sx fastback

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ok guys i pulled my plugs and cap last night and my dizzy was off 180 so reset it and it fired up for a second, and i shut it off then tried to start it again and it just cranked... then i swapped my maf... no luck.... then i pulled my plugs again and checked so see if they were fouled, reinstalled them and i pulled my fuel pump relay and it fired right up and ran off of the fuel in my rail... idled at 1200rpm and oil pressure was there... it ran for a few seconds and then i shut if off. i've gotta change the oil tonight due to it being flooded and fuel soaking past the rings and into my oil. then i'm going to put the fuel pump relay back in and see if it runs............ i hope all these kwirks pan out cuz i'm ready to drive my chuki! i'm moving this weekend so i wont have time to put the gun on it and get her tunned but i will keep you poseted when i get the time... thanks guys


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