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Discussion Starter · #1 ·
I just installed a new PCI radio. Whenever I use the push to talk button, the engine stalls.
After talking to PCI today at Glamis, all we know is that only some '20's have this problem, and there is some magnetic sensor on the car that is getting effected.
PCI turned down the antenna power to 5 watts from 50 but it still effects the engine.
I relocated the the antenna to about 5 feet behind the car, but as soon as we got the antenna to within 2 feet of the back of the cat the engine would stall.
It seems that the injectors get a signal causing them to flood out the engine.
Anyone else have this issue???
 

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I have a 60w Rugged in my '20, and have been struggling with the same issue. I went to a full wave antenna with a ground plane, and it is better, but not fixed 100%.
The radio transmits and receives fine.
The weird thing is that sometimes the engine stalls and sometimes it doesn't. I think it would be easier to diagnose if it did it all the time.
I will be watching this thread. I would love to get it fixed.
 

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I have a 60w Rugged in my '20, and have been struggling with the same issue. I went to a full wave antenna with a ground plane, and it is better, but not fixed 100%.
The radio transmits and receives fine.
The weird thing is that sometimes the engine stalls and sometimes it doesn't. I think it would be easier to diagnose if it did it all the time.
I will be watching this thread. I would love to get it fixed.
Looking to buy the Rugged kit for my XTR, but reluctant now that I'm reading this. I reached out to Rugged and they aren't aware of any issues with the 2020 and compatibility of their radios with the engine. Let me know what you find out.....
 

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it's RF interference coming in via the wires, a connector, and / or to one of the controller boxes.... first, ground everything...the frame parts are powercoated... where the joints go together is not a good ground... run 10-12ga ground jumpers from the mounting plate on the antenna down the ground path to the frame back to ground..... second, try to maintain as much distance as you can with the radio, antenna wire and antenna away from any other wiring or boxes. Move the placement of the radio, wiring and antenna...... third, wrap the wiring in wire shield, even copper or aluminum foil, but add a ground wire back to a good ground. wrap any computers, efi boxes with foil to shield them and ground wires.... there are other things you can add to reduce the interference, but start with the above list.. no magic bullet
 

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Discussion Starter · #5 ·
Here is an update. My car has been at the dealer for 3-1/2 weeks now. They did pin point the issue to the MAP sensor.
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They said when transmitting through the radio, this pressure sensor would show max output. They ordered a new 1 bar sensor, but because this is a GYTR turbo, it was the wrong sensor. They now ordered a 3 bar sensor, which will take at least two weeks to arrive.
I asked them why they didn't just shield a perfectly good working sensor and they said that the factory harness plugs into the sensor so the shielding within the sensor might be bad....
If this doesnt work I'll just bring the car home and shield the harness and sensor myself.
GUMP, is your car NA or turbo?
 

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My car is a turbo.
What is strange, mine hasn't been acting up lately. While I haven't been out on any rides with other radio owners, I can key the mic up and talk with no problems.
I will be watching to see what you find out. In the meantime, I may shield my MAP just for giggles.
 

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Discussion Starter · #7 ·
FINALLY got my car back from the dealer, with the new 3 bar sensor. No change!!! Big surprise!
To start, I ordered some shielding tape to wrap the sensor and harness. But first wanted to take it to Pismo and test the new paddles.
Paddles work great but now when the car hits 7500 rpm it studders, misses and the check engine light comes on.
As soon at the rpm drops below 7500, all is normal.
I will be on the phone with Yamaha first thing in the morning.
Jeez!!!
 

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I have a 60w Rugged in my '20, and have been struggling with the same issue. I went to a full wave antenna with a ground plane, and it is better, but not fixed 100%.
The radio transmits and receives fine.
The weird thing is that sometimes the engine stalls and sometimes it doesn't. I think it would be easier to diagnose if it did it all the time.
I will be watching this thread. I would love to get it fixed.
So did you find anything out? I'm having the same annoying issue with my 19 3 pedal GYTR turbo car.
 

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It still does it sometimes. It is intermittent on my car, which makes it even harder to diagnose.
The other problem I have, there is only one other car I ride with that has a radio so I don't use my radio much.
Oddly enough, it seems to be worse when the car is wet.
 

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Discussion Starter · #10 ·
The only way I could get mine to keep running when I transmit was to wrap the base of the antenna with shielding tape.
According to PCI, this will drastically reduce the transmit range, but there is enough power to communicate with anyone in our group.
I am not impressed with corporate Yamaha's ability to fix issues!
The stumbling problem is still not fixed either!!
It's only been in the shop for 5 out of the 13 months I've owned it!!!!
 
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