diff --git a/.changeset/angular-config-object-startsync.md b/.changeset/angular-config-object-startsync.md
new file mode 100644
index 0000000000..20c2486093
--- /dev/null
+++ b/.changeset/angular-config-object-startsync.md
@@ -0,0 +1,7 @@
+---
+'@tanstack/angular-db': patch
+---
+
+fix(angular-db): a `{ query }` config-object passed to `injectLiveQuery` now syncs
+
+The config-object branch called `createLiveQueryCollection(opts)` without defaulting `startSync`, unlike the query-function and reactive-options branches (which force `startSync: true`), so a bare `{ query }` never started syncing and produced no data. It now defaults `startSync: true` and `gcTime: 0` while still honoring any explicit values in the config.
diff --git a/packages/angular-db/src/index.ts b/packages/angular-db/src/index.ts
index 1bce5c6843..59eb1b11cd 100644
--- a/packages/angular-db/src/index.ts
+++ b/packages/angular-db/src/index.ts
@@ -194,9 +194,11 @@ export function injectLiveQuery(opts: any) {
       })
     }
 
-    // Handle LiveQueryCollectionConfig objects
+    // Handle LiveQueryCollectionConfig objects. Default startSync/gcTime to
+    // match the query-fn and reactive-options paths, but let an explicit value
+    // in the config win — otherwise a bare `{ query }` never syncs.
     if (opts && typeof opts === `object` && typeof opts.query === `function`) {
-      return createLiveQueryCollection(opts)
+      return createLiveQueryCollection({ startSync: true, gcTime: 0, ...opts })
     }
 
     throw new Error(`Invalid options provided to injectLiveQuery`)
diff --git a/packages/angular-db/tests/conformance.test.ts b/packages/angular-db/tests/conformance.test.ts
index 06fadf4f64..46a51602b2 100644
--- a/packages/angular-db/tests/conformance.test.ts
+++ b/packages/angular-db/tests/conformance.test.ts
@@ -213,13 +213,7 @@ const angularDriver: LiveQueryDriver = {
   mountCollection,
   mountConfig,
   mountDisabled,
-  // Divergence the suite surfaced: angular-db's plain `{ query }` config-object
-  // path calls createLiveQueryCollection(opts) as-is, without injecting
-  // startSync:true the way the query-fn path does — so a bare `{ query }` never
-  // syncs and returns empty. React/Vue/Svelte/Solid all auto-start a config
-  // object; Angular requires an explicit `startSync: true` (its own config test
-  // passes it). Recorded until angular-db aligns.
-  knownGaps: [`config-object-input`],
+  knownGaps: [],
   features: { serverSnapshot: false, suspense: false },
 }