Car won't start, need help please!
Posted: Fri Jan 02, 2015 4:32 pm
As title says my poor Miata won't start, it's a 1996 Mazda Miata 1.8L DOHC mods: Magnaflow full exhaust, aftermarket header, solid Derlin motor mounts, Koni yellow coil overs.
So the issue I'm having is I purchased it with a bad miss at idle and bad motor mounts, I ran seafoam system cleaner through the intake system, and did a tune up NGK plugs and wires, still a bad miss at idle. So code it through was egr orifice tube clogged or something. When temperatures outside are above 30-40 degrees car runs fine and has barely a miss or no miss, and when you get the rpm's above 1500-2200 it's fine and has plenty of power. So recently a very cold morning went to start it up and would start for anything usually I give it has a few times it will start this time nothing helped. So I came home later pulled plugs cleaned them and cleaned egr valve and with a lot of effort and no improvement from cleaning it starter and barely ran drove half a block and it died at idle. So I removed EGR valve and blacked it off with a piece of cardboard and capped all vacuum lines and it will run with no power like absolute sh*t and dies when I try to let it idle. I have also noticed my fuel pump doesn't prime when I cycle the key it randomly does but not always but yet the car will still start? I'm stumped and caught between EGR valve and fuel pump I don't wanna guess since egr $100 and fuel pump $132.
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So the issue I'm having is I purchased it with a bad miss at idle and bad motor mounts, I ran seafoam system cleaner through the intake system, and did a tune up NGK plugs and wires, still a bad miss at idle. So code it through was egr orifice tube clogged or something. When temperatures outside are above 30-40 degrees car runs fine and has barely a miss or no miss, and when you get the rpm's above 1500-2200 it's fine and has plenty of power. So recently a very cold morning went to start it up and would start for anything usually I give it has a few times it will start this time nothing helped. So I came home later pulled plugs cleaned them and cleaned egr valve and with a lot of effort and no improvement from cleaning it starter and barely ran drove half a block and it died at idle. So I removed EGR valve and blacked it off with a piece of cardboard and capped all vacuum lines and it will run with no power like absolute sh*t and dies when I try to let it idle. I have also noticed my fuel pump doesn't prime when I cycle the key it randomly does but not always but yet the car will still start? I'm stumped and caught between EGR valve and fuel pump I don't wanna guess since egr $100 and fuel pump $132.
Sent from my iPhone
