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Thread: Engine surging with handheld not connected?

  1. #1

    Default Engine surging with handheld not connected?

    Hi. I haven't driven my '87 Firebird for a couple of weeks since I installed the Sniper EFI. I was experimenting with the EFI software with my laptop, and forgot to reconnect the handheld, so nothing was connected to the ECU. Car started great, as usual, and idled perfectly. When I attempted to drive away, the engine increased the idle to around 1700 RPM. I put it into neutral and feathered the gas a little and it went down to its normal idle. Tried it again and it surged once more. I then shut it down. I reattached the handheld. (I really hate that small connector) and it runs perfect now. Does the ECU rely on the handheld for some of its instructions or was this a fluke? Any thoughts would be appreciated. Louis

  2. #2


    Well, it sounds like that solved your issue. You could get one of these:, so you don't have to mess with switching the cable/handheld out.

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