diff --git a/app/Http/Controllers/Repuve/UpdateController.php b/app/Http/Controllers/Repuve/UpdateController.php
index 0caee29..6152c46 100644
--- a/app/Http/Controllers/Repuve/UpdateController.php
+++ b/app/Http/Controllers/Repuve/UpdateController.php
@@ -264,7 +264,7 @@ public function vehicleUpdate(Request $request)
 
                 // Consultar REPUVE Federal para obtener folio y tag_number
                 try {
-                    $repuveResponse = $this->repuveService->consultarVehiculo($nivEstatal, $placa);
+                    $repuveResponse = $this->repuveService->consultarVehiculo($nivEstatal, null);
 
                     if ($repuveResponse['has_error']) {
                         DB::rollBack();
diff --git a/app/Services/RepuveService.php b/app/Services/RepuveService.php
index 9d63226..88ccdb6 100644
--- a/app/Services/RepuveService.php
+++ b/app/Services/RepuveService.php
@@ -287,8 +287,12 @@ public function consultarVehiculo(?string $niv = null, ?string $placa = null)
         try {
             $url = $this->baseUrl . '/jaxws-consultarpv/ConsultaRpv';
 
-            // Construir arg2: NIV|PLACA|||||||
-            $arg2 = ($niv ?? '') . '|' . ($placa ?? '') . str_repeat('|', 4);
+            // Construir arg2: NIV||||||||
+            if ($placa) {
+                $arg2 = ($niv ?? '') . '|' . $placa . str_repeat('|', 5);
+            } else {
+                $arg2 = ($niv ?? '') . str_repeat('|', 7);
+            }
 
             $soapBody = <<<XML
         <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:wsdl="http://consultaRpv.org/wsdl">