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700 Turbo bogging down and rich mixture. -Timing Retarded, check Knock Sensor & Wiring. 700

posted by  FitzFitzgerald on  Sat Apr 3 16:48 CST 2004
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last visit: Wed Jun 25 23:15 CST 2014
[RELATED]

Ah, the knock sensor! Check the wiring to it if you still have the original biodegradable harness, and consider replacing the Bosch Knock Sensor (about $30-$40).

Here's a section out of the FAQ that describes some of the symptoms associated with a failing knock sensor. Also, a glowing exhaust manifold or turbo can be another symptom since a lot of the combustion is taking place too late (after being expelled from the cylinder).

http://www.brickboard.com/FAQ/700-900/EnginePerformanceSymptoms.htm#Poor_Cold_Weather_Fuel_Economy

FAQ info regarding 700 Turbo and loss of singal from Knock Sensor (glowing turbo, etc):
http://www.brickboard.com/FAQ/700-900/EngineTurbo.htm#TurboHasPowerLossandCherryManifoldKnockSensor

God bless,
Fitz Fitzgerald.
--
'87 Blue 245, NA 236K






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