Alan Cesar Associate Editor
March 13, 2012 10:27 a.m.

I've had this problem before, and I usually waited it out. I'm getting impatient this time.

I cleaned the underside of my hood recently—lots of muck from a coolant leak. I used a hose to rinse it, and some water poured onto the engine. Yesterday morning, my car doesn't start. It sputters a couple times, then nothing. Engine code 3: No G Signal. I figure water got into my CAS, like last time. I had previously waited a day for it to dry and went on my way. This is on a 1991 Miata, 1.6-liter.

Last night I did a little more troubleshooting and noticed I'm getting spark from one coil, no spark from the other (left coil as you're looking at the engine). Is this normal when you have no G signal? I haven't reset the code yet, so I'm not sure if the CAS is working again and I coincidentally have a bad coil as well.

Keith MegaDork
March 13, 2012 10:38 a.m.

I don't have my books with me, but I do know that one of the CAS signals only fires half as often. It's possible that might show as a dead coil. I'd make sure the CAS was working first, anyhow.

You'll need to log in to post.

Also on Grassroots Motorsports

Follow Us to the Nürburgring

14 hours ago in News

Follow along as James Clay from BimmerWorld contests his first ADAC Zurich 24-Hour race at the Nürburgring.

Shark Bite: Back in 1997, Hyundai Was Into Rally

14 hours ago in Articles

A Hyundai Tiburon as a rally car?

From the GRM Vault: Our First Drive of the Original BMW M3

1 day ago in Articles

We tested BMW's E30-chassis M3 back in 1989. Here's what we thought.

Great Moments in $2000 Challenge History: Minor Gasser

1 day ago in Articles

Here's what happens when you put a Chevy 350 in a Morris Minor.

What’s the Soonest That You Have Raced Your New Purchase?

1 day ago in News

This BMW M3 was wearing numbers 24 hours after getting registered.

You Need This: 2005 Lotus Elise

2 days ago in News

A Lotus Elise looks so right in British Racing Green.

2017 Mazda MX-5 RF

2 days ago in New Car Reviews

We're big fans of the Mazda MX-5. Now Mazda went and put a retractable fastback on their fourth-generation car. So, ...

Project Ramp Truck: Installing Sound Deadening

2 days ago in Project Cars

Time to cut down on heat and road noise making its way into the cab.

Eric Foss Sets Fastest Time Ever at the Tire Rack Ultimate Track Car Challenge

3 days ago in News

47 of the country's fastest cars battled it out for track supremacy.

Who Wants to Design the Next GRM T-Shirt?

3 days ago in News

Blipshift is involved, so you know that it will be cool.

Reader's Ride of the Week: Improving Upon the Ultimate Driving Machine

3 days ago in News

This E36-chassis M3 just keeps getting better.

What Was the Most Powerful Car at the Grassroots Motorsports Dyno Day?

3 days ago in News

What if we told you it was an Audi?


Grassroots Motorsports Magazine

Subscribe Today

Also get your instant access to the digital edition of Grassroots Motorsports Magazine!

Learn More