No power and then it dies. - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


General Miata Chat A place to talk about anything Miata

Reply
 
 
 
LinkBack Thread Tools
Old 06-15-2008, 06:40 PM   #1
Senior Member
Thread Starter
iTrader: (4)
 
Join Date: Oct 2006
Location: Tampa
Posts: 780
Total Cats: 0
Default No power and then it dies.

I was driving and I was not in boost. The car started to decelerate even if I mashed the throttle. Then it died. It will crank and it will run as long as I modulate the throttle, but it runs super rough and eventually stalls.

Fuel pressure looks good based on the fuel pressure gauge I have in line. It checks out around 40 when I try to start the car.

I checked the coils and they both banks checked out with 10.55 ohms. That is within spec.

The question is this. Does anyone know the resistance numbers for the NGK plug wires? I found something that hinted towards 8k ohms. If it is, then my wires are toast.

Can anyone confirm this?
96rdstr is offline   Reply With Quote
Old 06-15-2008, 07:40 PM   #2
Junior Member
iTrader: (2)
 
Join Date: Jun 2007
Location: Western N.C.
Posts: 447
Total Cats: 1
Default

Check your charge pipes; I had similar conditions after blowing a coupler off. Might not apply if you have deleted AFM
Milton Tucker is offline   Reply With Quote
Old 06-15-2008, 07:49 PM   #3
:(
iTrader: (7)
 
Join Date: Jul 2006
Location: nowhere
Posts: 8,281
Total Cats: 2
Default

Yep fuel pump is not workings cause the afm sees no vac. This would be the case if you arent on running the mspnp with the maf delete. Also a clogged cat has been known to do this as well. Unbolting the cat is a easy thing to try after you look at all your couplers and maybe even jumper the pump on to elimenate the fp control relay as a culprit.
magnamx-5 is offline   Reply With Quote
Old 06-15-2008, 07:49 PM   #4
Antisaint
iTrader: (17)
 
Vashthestampede's Avatar
 
Join Date: Feb 2007
Location: Danbury, CT
Posts: 4,659
Total Cats: 54
Default

+1

Sounds like a coupler came loose. I've had it happen too many times. I would know right away when it happened, then have to baby it until I was able to pull over somewhere to fix it.

Vash-
Vashthestampede is offline   Reply With Quote
Old 06-15-2008, 10:19 PM   #5
Senior Member
Thread Starter
iTrader: (4)
 
Join Date: Oct 2006
Location: Tampa
Posts: 780
Total Cats: 0
Default

All the couplers are intact and tight, and I have the MAF delete kit on the car. I have been running that ever since I installed the MS. I haven't made any changes to the MSQ in over a week. So, it is nothing that I changed in the system. I checked all the vacuum lines, and all is well.

But....

Now, I cant get it to start for any amount of time whatsoever. I can smell the raw fuel, so I know it is getting fuel. I will go to the stealership and get some new wires tomorrow. I guess, it wouldnt hurt to replace them anyway. If that doesn't do it then I will pull the cat and put my delete pipe on.
96rdstr is offline   Reply With Quote
Old 06-16-2008, 07:08 PM   #6
Senior Member
Thread Starter
iTrader: (4)
 
Join Date: Oct 2006
Location: Tampa
Posts: 780
Total Cats: 0
Default

Ok, a little update. The car started, but idled pig rich at 10. It immediately died when I blipped the throttle, and I cannot get it to restart.

I did the old screw driver in the insulator test, and I found something that I don't ever recall seeing before. Cyl 2 and 4 fire when I just turn the key to ign. I hear a little pop, and then there is a visible arc. I don't have to try and crank for it to happen. Could that be a short somewhere, or is it a sign of a bad coil pack?
96rdstr is offline   Reply With Quote
Old 11-20-2009, 12:25 AM   #7
Elite Member
iTrader: (41)
 
Join Date: Jan 2006
Location: Seabrook, TX
Posts: 2,409
Total Cats: 19
Default

Sorry to bring this back up, but what was resolved the problem with this?
rharris19 is offline   Reply With Quote
Old 11-20-2009, 09:28 AM   #8
Senior Member
Thread Starter
iTrader: (4)
 
Join Date: Oct 2006
Location: Tampa
Posts: 780
Total Cats: 0
Default

Quote:
Originally Posted by rharris19 View Post
Sorry to bring this back up, but what was resolved the problem with this?
No Problem.

It was a failed MAP sensor on my MSPNP. It was reading 0 when the ignition was on. It should have read atmospheric, 100-101. It was replaced by DIY under warranty, and I was up and running in a couple of days. I haven't had a single problem since.
96rdstr is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 59 12-15-2017 09:00 PM
Garrett Turbo, 1.8 Oil Pan, & Misc. Stuff nbdooey Miata parts for sale/trade 9 08-30-2017 10:50 PM
1994 Spec Miata Race Car SM/SM2/SSM For Sale Quinn Cars for sale/trade 6 10-23-2016 08:58 AM
Back to Stock Part Out!! Turbo Parts, MS2 Enhanced 01-05, Suspension, and MOAR! StratoBlue1109 Miata parts for sale/trade 16 10-02-2015 10:39 AM
Odd Steering issue interestedofold Suspension, Brakes, Drivetrain 5 09-29-2015 02:42 PM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 02:11 PM.