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no spark after intake manifold r/r.

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Old May 20, 2017 | 08:00 PM
  #1  
gtred's Avatar
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Default no spark after intake manifold r/r.

I removed the intake manifold upper to replace leaking injector seals. After reassembling, no start/no spark.

yes, I did reinstall the ground strap onto the throttle body. Yes, I did check the fuses both under the console and in engine bay. Are there any other fuses/connections? What is the no-start algorithm with a ms ecu?

History: I lost power at end of backstraight last race. It felt like a "soft cut" and I withdrew from event. This spring I restart. The vehicle idles rough and I note fuel leaking out of fuel rail at top of #1injector. Install new seals and now no-start. Next event is tommorro (of course).

2004 msm. Flattop. Begi Garrett set-up. BrainMS3.
Old May 20, 2017 | 08:11 PM
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Datalog it, see if you have RPM. If you don't, check cam position sensor connection, and crank position sensor. If you have RPM in the datalog and no start, check coil pack wiring.
Old May 21, 2017 | 08:37 AM
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I did ck the connentions to the cam sensor and crank position sensor. Wiggled them and it fired right up! Thx. Cj




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