Spark issue after megasquirt?
#1
![Unhappy](https://www.miataturbo.net/images/icons/icon9.gif)
Hi Everyone,
Having a spark issue after installing Megasquirt and was suggested to post in this section..
UPDATE: Megasquirt, wideband, and everything else re-installed (suggested by other members). Car just cranks, but won't turn over.
I posted the current tune in a reply down below, but i will re-post it up here when i get home tonight
Long version - scroll down for "straight to the point" version lol
I drive a 1991 Miata SE with 90,xxx original miles. It was running good until I tried to install an Innovative wideband (DB Series Wideband Kit - Blue
Part #: 3795) and MegaSquirtPNP G2 ECU at the same time. Followed the instructions for everything the way they read, but after installing the required maps/settings after all was done, the car would turn over, but it would have trouble staying on and just die down. It would also drain my battery for some reason and i eventually had to keep using jumpers to another car every time. After trying to adjust the timing and what not in the Megasquirt program, timing belts, new fuel components, i gave up and completely removed ALL wiring and components (like O2 that came with the wideband kit, replaced oem ecu, etc..) and put everything back stock.
At first i had to jump the car but eventually the battery charged up a bit. It would just crank and not fire for a while and eventually after replacing the parts below (most parts suggested by others and some searching but problems is still here obviously) the car now turns on and will idle about 900 but not steady. It feels like its a cammed rotary motor. Like the video below, if i remove spark plug wires # 1 or #3 the car still stays on and runs the same but if i take out #2 or #4 the car shuts off. Checked the spark by simply pulling the wire out slightly and realized 1 and 3 have very little to no spark and 2 and 4 have strong spark. Also after leaving it running for a bit (more that 5-10 min) the car will begin to leak coolant looks like out the cap and the middle parts of radiator. Like i said i'm not sure what it could be just need some advise. I've been researching for months. All parts listed below are NEW.
SHORT VERSION
My Miata is running as if only 2 cylinders are firing. If i remove spark plug wire #1 or #3 the car will continue to run the same, but if i remove #2 or #4 the car immediately dies down. like this guy
Currently has OEM ECU and the below parts are BRAND NEW and just installed.
Parts Replaced
ECU Fuse
Fuel Pump
Fuel Filter
Fuel Pressure Regulator
Fuel Injectors
Fuel Pump Relay
Spark Plugs
Spark Plug Wires
Coil Pack
Ignition Switch
Coolant Temperature Sensor (back of motor)
CAS (Cam Angle Sensor in back of motor)
PCV Valve
Throttle Dampening Valve
MAF Box
ANY advise or suggestions welcome!
Thanks,
Mike
Having a spark issue after installing Megasquirt and was suggested to post in this section..
UPDATE: Megasquirt, wideband, and everything else re-installed (suggested by other members). Car just cranks, but won't turn over.
I posted the current tune in a reply down below, but i will re-post it up here when i get home tonight
Long version - scroll down for "straight to the point" version lol
I drive a 1991 Miata SE with 90,xxx original miles. It was running good until I tried to install an Innovative wideband (DB Series Wideband Kit - Blue
Part #: 3795) and MegaSquirtPNP G2 ECU at the same time. Followed the instructions for everything the way they read, but after installing the required maps/settings after all was done, the car would turn over, but it would have trouble staying on and just die down. It would also drain my battery for some reason and i eventually had to keep using jumpers to another car every time. After trying to adjust the timing and what not in the Megasquirt program, timing belts, new fuel components, i gave up and completely removed ALL wiring and components (like O2 that came with the wideband kit, replaced oem ecu, etc..) and put everything back stock.
At first i had to jump the car but eventually the battery charged up a bit. It would just crank and not fire for a while and eventually after replacing the parts below (most parts suggested by others and some searching but problems is still here obviously) the car now turns on and will idle about 900 but not steady. It feels like its a cammed rotary motor. Like the video below, if i remove spark plug wires # 1 or #3 the car still stays on and runs the same but if i take out #2 or #4 the car shuts off. Checked the spark by simply pulling the wire out slightly and realized 1 and 3 have very little to no spark and 2 and 4 have strong spark. Also after leaving it running for a bit (more that 5-10 min) the car will begin to leak coolant looks like out the cap and the middle parts of radiator. Like i said i'm not sure what it could be just need some advise. I've been researching for months. All parts listed below are NEW.
SHORT VERSION
My Miata is running as if only 2 cylinders are firing. If i remove spark plug wire #1 or #3 the car will continue to run the same, but if i remove #2 or #4 the car immediately dies down. like this guy
Parts Replaced
ECU Fuse
Fuel Pump
Fuel Filter
Fuel Pressure Regulator
Fuel Injectors
Fuel Pump Relay
Spark Plugs
Spark Plug Wires
Coil Pack
Ignition Switch
Coolant Temperature Sensor (back of motor)
CAS (Cam Angle Sensor in back of motor)
PCV Valve
Throttle Dampening Valve
MAF Box
ANY advise or suggestions welcome!
Thanks,
Mike
Last edited by boriicuaz; 02-17-2016 at 09:08 PM. Reason: Update
#4
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Follow Miata Ignition - and if that doesn't work, swap the pairs, either 1&4 and 2&3 or 2&3 and 1&4 across the coil packs.
#5
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Follow Miata Ignition - and if that doesn't work, swap the pairs, either 1&4 and 2&3 or 2&3 and 1&4 across the coil packs.
#7
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
MegaSquirtPNP G2
http://www.good-win-racing.com/Mazda-Performance-Part/61-0342.html
Innovative A/F gauge with O2
http://www.diyautotune.com/catalog/innovate-standalone-gauge-kit-lc2-blue-db-gauge-3795-p-153.html
GM Open Element IAT Sensor
http://www.diyautotune.com/catalog/gm-open-element-iat-sensor-with-pigtail-p-62.html
When you say try firing spark A and B do you mean within the Megasquirt program? I'd have to put the MS back in (currently on stock ecu). Sorry im new to the tuning element.
#8
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Yes - those settings are under the CAN Bus / Test Mode menu in TunerStudio. If Spark B won't fire, contact us directly at support@diyautotune.com for warranty repair.
#9
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Yes - those settings are under the CAN Bus / Test Mode menu in TunerStudio. If Spark B won't fire, contact us directly at support@diyautotune.com for warranty repair.
Opened the Tuner Studio and hit "Create new Project"
![](https://www.miataturbo.net/attachments/mspnp-55/162302-spark-issue-after-megasquirt-80-enter_file_name_33fa68d48776638b71ae0e644f13a7cf0c6ff015.jpg?dateline=1455485340)
Then i turned the accessories on and hit "detect" and this popped up.
![](https://www.miataturbo.net/attachments/mspnp-55/162303-spark-issue-after-megasquirt-80-detect_0dc9b1b925dfef0f0fcc2052c1b0ff4ccda69a0f.jpg?dateline=1455485340)
"Accept"
![](https://www.miataturbo.net/attachments/mspnp-55/162304-spark-issue-after-megasquirt-80-1_settings_aff2ca9a1453a5ed652f044708a40c5a11ce1875.jpg?dateline=1455485340)
"Next"
![](https://www.miataturbo.net/attachments/mspnp-55/162305-spark-issue-after-megasquirt-80-2_settings_d5c78911c3867d09a9e8066248bd747f6006ad39.jpg?dateline=1455485340)
"Next"
![](https://www.miataturbo.net/attachments/mspnp-55/162306-spark-issue-after-megasquirt-80-3_settings_4bdc89d9c1da4996fae052dbcf994e7b6ab428ca.jpg?dateline=1455485340)
"Finish"
![](https://www.miataturbo.net/attachments/mspnp-55/162307-spark-issue-after-megasquirt-80-base_311d2a2a122ff18d6a7bf773b5165ad22a968905.jpg?dateline=1455485340)
"File" - "Open Tune" - Selected the 91 Miata 1.6 "V3 3.1" Tune from MegaSquirtPNP by DIYAutoTune.com
![](https://www.miataturbo.net/attachments/mspnp-55/162308-spark-issue-after-megasquirt-80-v3_3_1_signatures_do_not_match_5ce7e3a53562d855f5d417320157daabd504e0d7.jpg?dateline=1455485340)
Tried to load it anyway.
![](https://www.miataturbo.net/attachments/mspnp-55/162309-spark-issue-after-megasquirt-80-send_and_burn_a65acf29ea710eee84de7c8dedd48ed4893d8706.jpg?dateline=1455485340)
Error essage popped up
![](https://www.miataturbo.net/attachments/mspnp-55/162310-spark-issue-after-megasquirt-80-errors_516966fe57e015ad0b6984abd4e09f72b6e8bcfc.jpg?dateline=1455485340)
Error list from map V3 3.1
![](https://www.miataturbo.net/attachments/mspnp-55/162311-spark-issue-after-megasquirt-80-v3_3_1_error_list_76378764b18bf69ce6915d21b946b6eb1d9f69ee.jpg?dateline=1455485340)
When i tried the same process with the V3 2.5 map This is the error list popped up.
![](https://www.miataturbo.net/attachments/mspnp-55/162312-spark-issue-after-megasquirt-80-v3_2_5_error_list_aa6aa3ed1b2a1bd2cafa9e5e6acad07c9e0ff683.jpg?dateline=1455485340)
![](https://www.miataturbo.net/attachments/mspnp-55/162313-spark-issue-after-megasquirt-80-power_cycle_required_465f81ed706944335d28e7ecdf9a317ee45880ee.jpg?dateline=1455485340)
Here what it looked like when i was cranking the engine (didnt change the IAT settings to the gm yet)
![](https://www.miataturbo.net/attachments/mspnp-55/162314-spark-issue-after-megasquirt-80-crank_bd32cdd0a00994841b0682bb5a2ed4ad554ba717.jpg?dateline=1455485340)
Sorry for the novel just trying to be detailed.