SOLVED 2004 Mazdaspeed SEE POST #22 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Engine Performance This section is for discussion on all engine building related questions.
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 06-24-2014, 01:17 PM   #1
AFM Crusader
Thread Starter
iTrader: (18)
 
olderguy's Avatar
 
Join Date: Oct 2004
Location: Wayne, NJ
Posts: 4,438
Total Cats: 84
Default SOLVED 2004 Mazdaspeed SEE POST #22

Friend of mine had his car stop on the highway. He took it to a garage that tested compression and told him his motor was shot. (95K)

Brought it to me for timing belt/water pump, which seemed uneventful. It was off a few teeth.

A cold air intake has been installed and the wiring adapted, but unknown how well done.

Can not get the car to start. On first try it seemed to "diesel" for a few seconds and died. Does not fire when trying to start at all afterward.

Symptoms:

No tach movement.
Full fuel pressure good when pump runs jumped out.
Small, weak spark when first turning over but does not continue.
Plugs dry.
Fuel pump starts for short time when trying to start and then stops.



Replaced or swapped with known good or new and checked:

Main relay
Crank Angle sensor
Cam Angle Sensor
Both coils
Checked all fuses and power to all areas checked seems good.
Verified Crank Angle Sensor line back to ECU. Ground OK
Battery fully charged
All correct lights on dash on.
When cranking with OBDII reader connected, shows as 239rpm. No other codes present.

Before I tell him he will need to take it to a dealer and get raped, I need some ideas.

Last edited by olderguy; 07-15-2014 at 06:21 PM.
olderguy is offline   Reply With Quote
Old 06-24-2014, 02:17 PM   #2
Senior Member
 
Join Date: Mar 2006
Location: Schwarzenberg, Germany
Posts: 1,497
Total Cats: 81
Default

Crank and cam sensor distance measured?
Zaphod is offline   Reply With Quote
Old 06-24-2014, 02:25 PM   #3
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,105
Total Cats: 518
Default

You need compression for a motor to run. Although I doubt all four cylinders went out at once, does it sound even when cranking? No stronger puffs on one or two cylinders than the other?

What were the compression numbers?
curly is offline   Reply With Quote
Old 06-24-2014, 02:26 PM   #4
Junior Member
iTrader: (2)
 
Join Date: Sep 2013
Location: Pittsburgh PA
Posts: 276
Total Cats: 6
Default

only because you said you did the timing belt:

is the crank trigger on backwards?
Davezorz is offline   Reply With Quote
Old 06-24-2014, 02:33 PM   #5
AFM Crusader
Thread Starter
iTrader: (18)
 
olderguy's Avatar
 
Join Date: Oct 2004
Location: Wayne, NJ
Posts: 4,438
Total Cats: 84
Default

Quote:
Originally Posted by Zaphod View Post
Crank and cam sensor distance measured?
Crank distance about thickness of a credit card.

No adjustment on cam distance that I know of.
olderguy is offline   Reply With Quote
Old 06-24-2014, 02:34 PM   #6
AFM Crusader
Thread Starter
iTrader: (18)
 
olderguy's Avatar
 
Join Date: Oct 2004
Location: Wayne, NJ
Posts: 4,438
Total Cats: 84
Default

Quote:
Originally Posted by Davezorz View Post
only because you said you did the timing belt:

is the crank trigger on backwards?
Original crank trigger left in place while doing TB. Replaced afterward in same position.

EDIT: You are talking about the plate? Yes it is on correctly.

Last edited by olderguy; 06-24-2014 at 06:17 PM.
olderguy is offline   Reply With Quote
Old 06-24-2014, 02:37 PM   #7
AFM Crusader
Thread Starter
iTrader: (18)
 
olderguy's Avatar
 
Join Date: Oct 2004
Location: Wayne, NJ
Posts: 4,438
Total Cats: 84
Default

Quote:
Originally Posted by curly View Post
You need compression for a motor to run. Although I doubt all four cylinders went out at once, does it sound even when cranking? No stronger puffs on one or two cylinders than the other?

What were the compression numbers?
Original compression number told to be almost nothing. Have not checked since doing TB. May be time to do so, but should have had something firing.

Seems to be no signal to spark or injectors. Don't want to think it is the ECU yet. Do not understand how the immobilizer might affect spark and fuel if it is FUBAR.
olderguy is offline   Reply With Quote
Old 06-24-2014, 04:59 PM   #8
AFM Crusader
Thread Starter
iTrader: (18)
 
olderguy's Avatar
 
Join Date: Oct 2004
Location: Wayne, NJ
Posts: 4,438
Total Cats: 84
Default

Any other thoughts?
olderguy is offline   Reply With Quote
Old 06-24-2014, 06:19 PM   #9
AFM Crusader
Thread Starter
iTrader: (18)
 
olderguy's Avatar
 
Join Date: Oct 2004
Location: Wayne, NJ
Posts: 4,438
Total Cats: 84
Default

Compression test supposed to be warm and at 300 RPM

Motor is cold and not turning fast, but all cylinders are even at about 170psi.

Last edited by olderguy; 06-24-2014 at 08:31 PM. Reason: Left off the "1"
olderguy is offline   Reply With Quote
Old 06-24-2014, 07:19 PM   #10
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,105
Total Cats: 518
Default

My 1.6 with a lower compression ratio and a tiny motorcycle battery make 150-160. You may have blown all four cylinders some how.
curly is offline   Reply With Quote
Old 06-24-2014, 07:55 PM   #11
Elite Member
iTrader: (12)
 
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,868
Total Cats: 66
Default

Does he know if it was overheating or not when it "just died"? Any signs of overheating? Make sure there is coolant in the radiator? Checked the oil level/color/smell?
Doppelgänger is offline   Reply With Quote
Old 06-24-2014, 08:24 PM   #12
Elite Member
iTrader: (4)
 
Join Date: Sep 2006
Location: Charlotte, NC
Posts: 3,049
Total Cats: 4
Default

leak-down test?
Efini~FC3S is offline   Reply With Quote
Old 06-24-2014, 08:32 PM   #13
AFM Crusader
Thread Starter
iTrader: (18)
 
olderguy's Avatar
 
Join Date: Oct 2004
Location: Wayne, NJ
Posts: 4,438
Total Cats: 84
Default

Quote:
Originally Posted by curly View Post
My 1.6 with a lower compression ratio and a tiny motorcycle battery make 150-160. You may have blown all four cylinders some how.
Sorry, in my haste I missed the "1" it is about 170 across the board.

Oil is good, radiator was full when I got it. No signs of overheating.

Pulled the crank pulley to verify trigger plate. Was and is OK.
olderguy is offline   Reply With Quote
Old 06-24-2014, 08:58 PM   #14
Elite Member
iTrader: (12)
 
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,868
Total Cats: 66
Default

Did you 'test' or replace the main relay?

Yeah, big difference between 70 and 170 lol. The latter should fire.


Have you checked the fuel filter?
Doppelgänger is offline   Reply With Quote
Old 06-24-2014, 09:32 PM   #15
AFM Crusader
Thread Starter
iTrader: (18)
 
olderguy's Avatar
 
Join Date: Oct 2004
Location: Wayne, NJ
Posts: 4,438
Total Cats: 84
Default

Quote:
Originally Posted by Doppelgänger View Post
Did you 'test' or replace the main relay?

Yeah, big difference between 70 and 170 lol. The latter should fire.


Have you checked the fuel filter?
Replaced the main relay.

Didn't check fuel filter but I get a very fast 60psi in the line that comes into the engine bay.
olderguy is offline   Reply With Quote
Old 06-24-2014, 09:57 PM   #16
AFM Crusader
Thread Starter
iTrader: (18)
 
olderguy's Avatar
 
Join Date: Oct 2004
Location: Wayne, NJ
Posts: 4,438
Total Cats: 84
Default

Additional information:

The Red with Black stripe line that goes from the immobilizer to 3S on the ECU is +12 volts.

This seems to be the only connection between the two.
olderguy is offline   Reply With Quote
Old 06-24-2014, 10:19 PM   #17
Elite Member
iTrader: (12)
 
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,868
Total Cats: 66
Default

Swap a MAF?
Doppelgänger is offline   Reply With Quote
Old 06-24-2014, 10:46 PM   #18
AFM Crusader
Thread Starter
iTrader: (18)
 
olderguy's Avatar
 
Join Date: Oct 2004
Location: Wayne, NJ
Posts: 4,438
Total Cats: 84
Default

Quote:
Originally Posted by Doppelgänger View Post
Swap a MAF?
Not yet. It's a bitch to get at below the TB on pressure side of turbo coming up from the IC. Is this the way the stock Mazdaspeed did it? Looks jerry-rigged.
olderguy is offline   Reply With Quote
Old 06-24-2014, 10:51 PM   #19
Elite Member
iTrader: (12)
 
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,868
Total Cats: 66
Default

No. That's some Mazda-Speed forum crap lol. It's intended to be suck-through and over on the driver's side of the engine bay.

Doppelgänger is offline   Reply With Quote
Old 06-24-2014, 11:27 PM   #20
AFM Crusader
Thread Starter
iTrader: (18)
 
olderguy's Avatar
 
Join Date: Oct 2004
Location: Wayne, NJ
Posts: 4,438
Total Cats: 84
Default

Thanks.

Big difference! And they did some shitty wiring also.

Could be that pressurized air wiped out the MAF. I'll throw a good one on and try it NA before hooking the IC back up to it.
olderguy is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
1994 Spec Miata Race Car SM/SM2/SSM For Sale Quinn Cars for sale/trade 6 10-23-2016 08:58 AM
Need help - Stock Balancer and Fastforward overlay pulleys Frank_and_Beans Supercharger Discussion 13 09-12-2016 09:17 PM
WTB HPDE miata - Texas Voltwings Cars for sale/trade 0 09-27-2015 07:40 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 02:19 PM.