diff --git a/firmware/controllers/limp_manager.cpp b/firmware/controllers/limp_manager.cpp
index 1840d1e117..c6bd8a498e 100644
--- a/firmware/controllers/limp_manager.cpp
+++ b/firmware/controllers/limp_manager.cpp
@@ -63,6 +63,11 @@ void LimpManager::updateState(int rpm, efitick_t nowNt) {
 		allowFuel.clear();
 	}
 
+	if (!engine->isMainRelayEnabled(PASS_ENGINE_PARAMETER_SIGNATURE)) {
+		allowFuel.clear();
+		allowSpark.clear();
+	}
+
 	m_transientAllowInjection = allowFuel;
 	m_transientAllowIgnition = allowSpark;
 }