New2TheZ2006 Posted April 13, 2007 Share Posted April 13, 2007 I have been driving my project car around now for nine months as I work on the body. It always starts on the first turn of the key. I drove it today and then worked on the body again and it woud not start (I know the engine is jelous right). I know little about engines so I brought a certified BMW/Mercedes/Audi mechanic over (I know, but I couldn't find a Nissan mechanic) and we did the following -installed guage to check fuel presaure and it is at 40psi -pulled and cleaned the plugs -pulled the rotor and dist cap and cleaned the contacts -checked and found spard in the distributer and at the plugs -checked the airflow flap thing and it is working -checked the relay for the fuel pump and it is ok -checked the connections at the fuel pump and it gets juice -checked the injectors and they are getting signal so what it does is wont start, it ran fine this am parked it then this afternoon it didnt want to start it cranks and fires and sounds like it wants to start but it doesnt I did get it to start one time after the onset of the issue and it smoked out the exhaust and the mechanic said it smelled rich when cranking it smells of gas like it gets flooded, he thought the throttle body air unit may have a leak and pulled the hose off to find none I have another airflow sensor thing he wants to switch out for grins When it is cranking it turns over and sounds like it is going to fire off and go but never does. The mechanic cant seem to figure it out, but said it is almost as if the timing if off, which he will check tommorow, but I didnt pull the distributor to mess that up Any ideas , anyone? I did have it low on gas and all we had was some race fuel handy and put in a gallon it wouldnt start, then I added five gallons regular unleaded to thin out the rase fuel so it wasnt too rich or high an octane, but that allegedly wont hurt it I was told. HELP:?: PS I have changed the oil, fuel lines, fuel filter, air filter, heater hoses, radiator hoses, and been maintaining it so it is not like it has been neglected. I been doing normal maitenance Quote Link to comment Share on other sites More sharing options...
naviathan Posted April 13, 2007 Share Posted April 13, 2007 It does sound like a rich condition. Although it sounds as though you've gone over all the usual suspects. What kind of body work were you doing? Quote Link to comment Share on other sites More sharing options...
tannji Posted April 13, 2007 Share Posted April 13, 2007 Any welding? I have heard of several instances where that ended up frying something electronic and critical. Also perhaps your distributor took this opportunity to shell out? Quote Link to comment Share on other sites More sharing options...
naviathan Posted April 13, 2007 Share Posted April 13, 2007 Any welding? I have heard of several instances where that ended up frying something electronic and critical. Also perhaps your distributor took this opportunity to shell out? That ws why I asked what kind of body work. Same thought crossed my mind. Quote Link to comment Share on other sites More sharing options...
New2TheZ2006 Posted April 13, 2007 Author Share Posted April 13, 2007 Yes welded many things. Most recently three days ago but drove it a couple times since So dont think thats it, but where could one get a 76 computer to swap it out? Anyone got a spair? Quote Link to comment Share on other sites More sharing options...
naviathan Posted April 13, 2007 Share Posted April 13, 2007 PM me, I have one. It's in my 77, but that's getting a TEC III when it's done. Quote Link to comment Share on other sites More sharing options...
Thumper Posted April 13, 2007 Share Posted April 13, 2007 Check your coolant temp sensor. If it comes unpluged or broken it will make the car run very rich. Quote Link to comment Share on other sites More sharing options...
mario_82_ZXT Posted April 13, 2007 Share Posted April 13, 2007 Unplug the cold start injector as well. If the thermotime(sp?) switch is bad it can cause unnecessary use of the cold start injector. You say it smells like fuel, now check for spark. Also, smell your oil, if it is very very rich you might have washed the cylinder walls and fuel could have gotten into your oil. You should change it if it smells like fuel. Mario Quote Link to comment Share on other sites More sharing options...
Daeron Posted April 14, 2007 Share Posted April 14, 2007 +1 on the CTS check, a VERY common problem point... the connectors get corroded because water can sit in there. you didnt get it wet, did you?? if so check ALL FI system connectors and hit them with some WD40, try wiggling each one while youre cranking. Quote Link to comment Share on other sites More sharing options...
New2TheZ2006 Posted April 14, 2007 Author Share Posted April 14, 2007 Thanks guys, I will try these recommendations this week and report back on the results. Jon PS Is this a good reason to do a engine swap? LOL, wife would kill me, ya know how it is? I am already in dog house for getting the car and making it a project over her protest. LOL, I AM THE MAN < didnt back down> now I get to hear about it >LOL< Quote Link to comment Share on other sites More sharing options...
JSM Posted April 14, 2007 Share Posted April 14, 2007 Jon, If I can be of any help let me know. I'm not the best with FI, but I'd be happy to learn w/ you. It will give me a reason to bring the rims by for you. I also bought another car Yeah! Quote Link to comment Share on other sites More sharing options...
New2TheZ2006 Posted April 15, 2007 Author Share Posted April 15, 2007 I am tempted to just switch over to carbs if anyone wants to add input for that. I think that would eliminate the issue. Thoughts:icon11:? Quote Link to comment Share on other sites More sharing options...
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