PLEASE HELP NO FUEL,NO SPARK, NO TACH SIGNAl
#1
PLEASE HELP NO FUEL,NO SPARK, NO TACH SIGNAl
Ok guys lemme start off by saying I SEARCHED MY *** OFF for weeks since i purchased this car..... I bought my 1992 Miata not running 1.6l boosted etc.
since i bought the car the wiring was a nightmare so i replaced the harness.
The megasquirt was also a nightmare so i bought a megasquirt PNP.
I Also bought A CAS, A ignitor, and stock ignition setup with ngk wires...
SO to get up to speed.... Harness installed, new megasquirt pnp installed... ait sensors hooked up to AFM connector, All grounds checked, etc.....
we hooked up to tuner studio and tried our first start with all new setup.... Its getting no tach signal, no fuel, and no spark..... Hmmm leads me to recheck everything and i did.... So then im thinking let me go borrow parts off a buddys running car.... SO i pulled the Cas, ignitor, and ignition coils, and wires, and ecu... from a buddy running and driving car... installed and still nothing....... ****
TIMING is 100% dead on.
Battery is 100% charged (starting with a jump pack as well to be sure of charge)
All fuses are 100% good.
Im at a loss here guys.... I have spent thousands on this car and i paid over 6k for the car not running.... I know its somthing stupid..... Please help me figure this out..
Also im going to clean the ignition switch and try that because i saw it pop up while searching through old threads... although i highly doubt it would cause no spark and fuel.... THANKS IN ADVANCE!!!
since i bought the car the wiring was a nightmare so i replaced the harness.
The megasquirt was also a nightmare so i bought a megasquirt PNP.
I Also bought A CAS, A ignitor, and stock ignition setup with ngk wires...
SO to get up to speed.... Harness installed, new megasquirt pnp installed... ait sensors hooked up to AFM connector, All grounds checked, etc.....
we hooked up to tuner studio and tried our first start with all new setup.... Its getting no tach signal, no fuel, and no spark..... Hmmm leads me to recheck everything and i did.... So then im thinking let me go borrow parts off a buddys running car.... SO i pulled the Cas, ignitor, and ignition coils, and wires, and ecu... from a buddy running and driving car... installed and still nothing....... ****
TIMING is 100% dead on.
Battery is 100% charged (starting with a jump pack as well to be sure of charge)
All fuses are 100% good.
Im at a loss here guys.... I have spent thousands on this car and i paid over 6k for the car not running.... I know its somthing stupid..... Please help me figure this out..
Also im going to clean the ignition switch and try that because i saw it pop up while searching through old threads... although i highly doubt it would cause no spark and fuel.... THANKS IN ADVANCE!!!
#3
we are leaning towards a firmware issue, just like this thread.
https://www.miataturbo.net/megasquir...-diypnp-69379/
https://www.miataturbo.net/megasquir...-diypnp-69379/
#4
I'm a terrible person
iTrader: (19)
Join Date: Apr 2009
Location: Arizona
Posts: 7,174
Total Cats: 180
Sounds like a wiring issue to me.
Confirm the firmware though as that is an easy check.
If that doesn't work I'd whip out the old DMM and start checking continuity from various connectors to the ECU connector. Also, for good measure I'd double check grounds. It's easy to forget one when swapping a harness, and there are a lot of them. Also double check all connectors are seated properly.
If the car won't run with a stock ECU I doubt the MS is the problem.
Confirm the firmware though as that is an easy check.
If that doesn't work I'd whip out the old DMM and start checking continuity from various connectors to the ECU connector. Also, for good measure I'd double check grounds. It's easy to forget one when swapping a harness, and there are a lot of them. Also double check all connectors are seated properly.
If the car won't run with a stock ECU I doubt the MS is the problem.
Thread
Thread Starter
Forum
Replies
Last Post
Zaphod
MEGAsquirt
47
10-26-2018 11:00 PM