Strange Problem when closing the hood

[Chris@Rvengeperformance]

Twice now the car (the white 95) has stuttered and dropped to a low idle for a second when I closed the hood while it was running.

Now I can't get it to do it. My first thought was a loose ignition wire somewhere, so I prodded around everything I could think of with a tool and couldn't get it to do it. Ordinarily the car runs fine, but did run rough once when coming up to a stop sign.

Any ideas? I'd hate for this to lead to being stranded at some point.

[j2k4]

Don't know how it would relate to the hood Chris, but my blown cap gave my the occasional low-erratic idle...

[Chris@Rvengeperformance]

Hopefully the ecu is ok, it is a 99 SL ecu with the boost circuit added by Jester 6 months ago.

I wonder if it doesn't mess up the maf reading temporarily.

[j2k4]

Hopefully the ecu is ok, it is a 99 SL ecu with the boost circuit added by Jester 6 months ago.

I wonder if it doesn't mess up the maf reading temporarily.

There's a thought...should be able to mimic that somehow.

[HilbillyHomeboy]

Usually the battery grounding out against the hood.

Jeremy

[Chris@Rvengeperformance]

Usually the battery grounding out against the hood.

Jeremy

A really good idea. I just went and put some grease on the positive terminal and it didn't leave a mark on the hood.

[CoreyB]

My guess is its the knock sensor. If you have a logger maybe you could log and then close the hood to see if anything shows up.

[Chris@Rvengeperformance]

Yeah if I could reliable reproduce the problem I'd log the thing. The tactrix is logging constantly, but it doesn't have its own clock/calendar. Without timestamps it would be impossible to align when the car did that to a log.

[IPD]

is something contacting your throttle body? maybe washer hose or something?

[sublime_whatigo]

Evo maf? I remember reading somewhere about people tapping them and idle changes, not sure if it was only on problematic mafs though.