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Rx7 FD - Elite1500 troubleshooting

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Old 01-04-23, 04:58 PM
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Rx7 FD - Elite1500 troubleshooting

Hi Folks,

I have searched but have been unsuccessful at finding any help for two issue which my new build is experiencing.

Spec:
13B REW half bridge
T04R turbo
FFE 36-1 Mag trigger wheel
IGN1A coils
ID750cc - Primary injectors
Bosch 1650cc - Secondaries


1. The manifold runners are glowing red on idle after 2-3 minutes.
I have verified that the base timing angle is correct having zeroed both the leading and trailing and checked with a timing light. Adjust to 92* with a FFE trigger wheel to get the red mark aligned. Have also checked trailing and leading is correct for the front and verified for the leading on the rear (added a mark at 180* to confirm).
Car is idling erratically varying from 1400rpm to 2400rpm depending on how I play with the ignition.

2. IGN4 - Rear Trailing coil is not firing
Identified when trying to trouble shoot the red manifold but the IGN4 is not firing. Have put in a new coil which fires if I hook it up to another plug. I have verified continuity for the grounds and between the ECU and trigger wiring. Confirmed the coil is getting 12V.

Help would be massively appreciated.

Regards,
Mike
Old 01-04-23, 05:01 PM
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Map attached
Attached Files
Old 01-06-23, 08:55 AM
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what do the plugs look like?
Old 01-07-23, 12:03 PM
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Originally Posted by Howard Coleman
what do the plugs look like?
Hi Howard,

Car has only been turned on and left run up to temp 4-5 times and turned off due to the red hot manifold and fear of fire.


Leading plugs (front-left, rear-right)

Trailing plugs (front-left, rear-right)
Old 01-07-23, 01:57 PM
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Not that I am an expert by any means relative to others on here, but did you set the injector lag/voltages for each set of injectors to the manufacturer spec?

Did you start with the Haltech rotary base map or did you build yourself?
Old 01-08-23, 10:10 AM
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Originally Posted by iceman4357
Not that I am an expert by any means relative to others on here, but did you set the injector lag/voltages for each set of injectors to the manufacturer spec?

Did you start with the Haltech rotary base map or did you build yourself?
Ya, set the voltages as per specs I found online for the injectors.

Started with the haltech single turbo base map which I adapted to my specifications, such as injectors, coils and trigger settings
Old 01-13-23, 04:19 PM
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Haltech zero demand ignition table
Old 01-13-23, 04:20 PM
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Originally Posted by mcon

Haltech zero demand ignition table
How do I disable this table. Guessing this is why my manifold is glowing?
Old 01-15-23, 12:47 PM
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Keeping this up to date in the hope that someone can guide me in stopping the manifold glowing.

I got the zero demand table disabled and the manifold still got red.

On a positive, I fixed the trailing plug not firing. The shielded cable shielding was shorting to the pin, meaning the signal was grounded. Pulled back the shielding and insulated and all coils are now firing.
Old 01-18-23, 02:08 PM
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Closing this thread as I got both issues sorted.

I ended up setting the ignition base timing to 15* in the idle area. That stopped the glowing and i then wound it back to 12* where it seemed happier.
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