94 z28 won't start..

**lt194** · 12-22-2009, 03:52 AM

So, I was pulling out of my driveway and my car died, I haven't been able to start it since. It turns fine, but it won't fire up. I thought it was the coil, but replaced that, as well as the battery and it still has the same problem.. Any Idea's as to what's wrong with it?

**bigrondownhiller** · 12-22-2009, 01:46 PM

First check to see if it has spark. Then you can check fuel next. How many miles on it?

**5abivt** · 12-22-2009, 05:41 PM

If it turns why did you replace the battery? How long was the car sitting? Sounds like it could be the optispark failing

**Orcus79** · 12-22-2009, 07:31 PM

try swaping with the fuel pump relay with the horn relay.

**lt194** · 12-23-2009, 12:33 AM

Originally Posted by bigrondownhiller

First check to see if it has spark. Then you can check fuel next. How many miles on it?

It has spark..how do I check fuel? 164k

**lt194** · 12-23-2009, 12:36 AM

Originally Posted by 5abivt

If it turns why did you replace the battery? How long was the car sitting? Sounds like it could be the optispark failing

Cause the battery needed replacing any way.. its been sitting about 2 weeks now. how do I check if it's the optispark? I have spark at least as far as the plug wires

**bigrondownhiller** · 12-23-2009, 08:16 AM

You can rent a fuel pressure gauge from the auto parts store. Do you hear the fuel pump prime when you turn the key to on?

**lt194** · 12-23-2009, 11:58 AM

Originally Posted by bigrondownhiller

You can rent a fuel pressure gauge from the auto parts store. Do you hear the fuel pump prime when you turn the key to on?

Yeah, I hear it prime..and I tried spraying starter fluid in, and it didn't start.. so I'm thinking not a fuel problem?

**bigrondownhiller** · 12-24-2009, 07:28 AM

Next I would pull a couple of plugs then. What do they look like? Do they smell like raw fuel?

**95ZR28** · 04-20-2010, 09:03 AM

I had the same problem with my 95z m6, I replaced the fuel pump, filter, relay, injectors, coil, and control module hoping that it wasn't the Opti. I was WRONG... I am in the process of replacing the opti and going coil on plug like the LS guys. Fingers crossed, hoping it works..