diff --git a/lib/_http_server.js b/lib/_http_server.js
index c3a10112ff2887..f77b8f6a7e7867 100644
--- a/lib/_http_server.js
+++ b/lib/_http_server.js
@@ -225,10 +225,8 @@ function writeHead(statusCode, reason, obj) {
     headers = obj;
   }
 
-  if (common._checkInvalidHeaderChar(this.statusMessage)) {
-    throw new errors.Error('ERR_HTTP_INVALID_CHAR',
-                           'Invalid character in statusMessage.');
-  }
+  if (common._checkInvalidHeaderChar(this.statusMessage))
+    throw new errors.Error('ERR_INVALID_CHAR', 'statusMessage');
 
   var statusLine = 'HTTP/1.1 ' + statusCode + ' ' + this.statusMessage + CRLF;
 
diff --git a/lib/_stream_transform.js b/lib/_stream_transform.js
index 0f607a6da38593..34a83f76322807 100644
--- a/lib/_stream_transform.js
+++ b/lib/_stream_transform.js
@@ -77,8 +77,7 @@ function afterTransform(er, data) {
   var cb = ts.writecb;
 
   if (!cb) {
-    return this.emit('error',
-                     new errors.Error('ERR_TRANSFORM_MULTIPLE_CALLBACK'));
+    return this.emit('error', new errors.Error('ERR_MULTIPLE_CALLBACK'));
   }
 
   ts.writechunk = null;
@@ -207,6 +206,7 @@ function done(stream, er, data) {
   if (data != null) // single equals check for both `null` and `undefined`
     stream.push(data);
 
+  // TODO(BridgeAR): Write a test for these two error cases
   // if there's nothing in the write buffer, then that means
   // that nothing more will ever be provided
   if (stream._writableState.length)
diff --git a/lib/internal/errors.js b/lib/internal/errors.js
index f1835516a70e95..109892f831247d 100644
--- a/lib/internal/errors.js
+++ b/lib/internal/errors.js
@@ -110,32 +110,32 @@ module.exports = exports = {
 //
 // Note: Please try to keep these in alphabetical order
 E('ERR_ARG_NOT_ITERABLE', '%s must be iterable');
-E('ERR_ASSERTION', (msg) => msg);
+E('ERR_ASSERTION', '%s');
 E('ERR_CONSOLE_WRITABLE_STREAM',
-  (name) => `Console expects a writable stream instance for ${name}`);
-E('ERR_CPU_USAGE', (errMsg) => `Unable to obtain cpu usage ${errMsg}`);
+  'Console expects a writable stream instance for %s');
+E('ERR_CPU_USAGE', 'Unable to obtain cpu usage %s');
 E('ERR_FALSY_VALUE_REJECTION', 'Promise was rejected with falsy value');
 E('ERR_HTTP_HEADERS_SENT',
   'Cannot render headers after they are sent to the client');
-E('ERR_HTTP_INVALID_CHAR', 'Invalid character in statusMessage.');
-E('ERR_HTTP_INVALID_STATUS_CODE',
-  (originalStatusCode) => `Invalid status code: ${originalStatusCode}`);
+E('ERR_HTTP_INVALID_STATUS_CODE', 'Invalid status code: %s');
+E('ERR_HTTP_TRAILER_INVALID',
+  'Trailers are invalid with this transfer encoding');
 E('ERR_INDEX_OUT_OF_RANGE', 'Index out of range');
+E('ERR_INVALID_ARG_TYPE', invalidArgType);
 E('ERR_INVALID_ARRAY_LENGTH',
   (name, length, actual) => {
-    let msg = `The "${name}" array must have a length of ${length}`;
-    if (arguments.length > 2) {
-      const len = Array.isArray(actual) ? actual.length : actual;
-      msg += `. Received length ${len}`;
-    }
-    return msg;
+    const assert = lazyAssert();
+    assert.strictEqual(typeof actual, 'number');
+    return `The "${name}" array must have a length of ${
+           length}. Received length ${actual}`;
   });
-E('ERR_INVALID_ARG_TYPE', invalidArgType);
-E('ERR_INVALID_CALLBACK', 'callback must be a function');
-E('ERR_INVALID_FD', (fd) => `"fd" must be a positive integer: ${fd}`);
+E('ERR_INVALID_CALLBACK', 'Callback must be a function');
+E('ERR_INVALID_CHAR', 'Invalid character in %s');
 E('ERR_INVALID_CURSOR_POS',
   'Cannot set cursor row without setting its column');
-E('ERR_INVALID_FILE_URL_HOST', 'File URL host %s');
+E('ERR_INVALID_FD', '"fd" must be a positive integer: %s');
+E('ERR_INVALID_FILE_URL_HOST',
+  'File URL host must be "localhost" or empty on %s');
 E('ERR_INVALID_FILE_URL_PATH', 'File URL path %s');
 E('ERR_INVALID_HANDLE_TYPE', 'This handle type cannot be sent');
 E('ERR_INVALID_OPT_VALUE',
@@ -144,47 +144,42 @@ E('ERR_INVALID_OPT_VALUE',
   });
 E('ERR_INVALID_REPL_EVAL_CONFIG',
   'Cannot specify both "breakEvalOnSigint" and "eval" for REPL');
+E('ERR_INVALID_REPL_HISTORY', 'Expected array, got %s');
 E('ERR_INVALID_SYNC_FORK_INPUT',
-  (value) => {
-    return 'Asynchronous forks do not support Buffer, Uint8Array or string' +
-           `input: ${value}`;
-  });
+  'Asynchronous forks do not support Buffer, Uint8Array or string input: %s');
 E('ERR_INVALID_THIS', 'Value of "this" must be of type %s');
 E('ERR_INVALID_TUPLE', '%s must be an iterable %s tuple');
 E('ERR_INVALID_URL', 'Invalid URL: %s');
 E('ERR_INVALID_URL_SCHEME',
-  (expected) => `The URL must be ${oneOf(expected, 'scheme')}`);
-E('ERR_INVALID_REPL_HISTORY',
-  (repl_history) => `Expected array, got ${repl_history}`);
-E('ERR_IPC_CHANNEL_CLOSED', 'channel closed');
+  (expected) => {
+    lazyAssert();
+    return `The URL must be ${oneOf(expected, 'scheme')}`;
+  });
+E('ERR_IPC_CHANNEL_CLOSED', 'Channel closed');
 E('ERR_IPC_DISCONNECTED', 'IPC channel is already disconnected');
 E('ERR_IPC_ONE_PIPE', 'Child process can have only one IPC pipe');
 E('ERR_IPC_SYNC_FORK', 'IPC cannot be used with synchronous forks');
 E('ERR_MISSING_ARGS', missingArgs);
-E('ERR_PARSE_HISTORY_DATA',
-  (oldHistoryPath) => `Could not parse history data in ${oldHistoryPath}`);
+E('ERR_MULTIPLE_CALLBACK', 'Callback called multiple times');
 E('ERR_NO_CRYPTO', 'Node.js is not compiled with OpenSSL crypto support');
+E('ERR_PARSE_HISTORY_DATA', 'Could not parse history data in %s');
+E('ERR_SOCKET_ALREADY_BOUND', 'Socket is already bound');
+E('ERR_SOCKET_BAD_TYPE',
+  'Bad socket type specified. Valid types are: udp4, udp6');
+E('ERR_SOCKET_CANNOT_SEND', 'Unable to send data');
+E('ERR_SOCKET_BAD_PORT', 'Port should be > 0 and < 65536');
+E('ERR_SOCKET_DGRAM_NOT_RUNNING', 'Not running');
 E('ERR_STDERR_CLOSE', 'process.stderr cannot be closed');
 E('ERR_STDOUT_CLOSE', 'process.stdout cannot be closed');
 E('ERR_STREAM_HAS_STRINGDECODER', 'Stream has StringDecoder');
 E('ERR_TRANSFORM_ALREADY_TRANSFORMING',
   'Calling transform done when still transforming');
-E('ERR_TRANSFORM_MULTIPLE_CALLBACK', 'Callback called multiple times');
 E('ERR_TRANSFORM_WITH_LENGTH_0',
-  'Calling transform done when ws.length != 0');
-E('ERR_HTTP_TRAILER_INVALID',
-  'Trailers are invalid with this transfer encoding');
-E('ERR_UNKNOWN_BUILTIN_MODULE', (id) => `No such built-in module: ${id}`);
-E('ERR_UNKNOWN_SIGNAL', (signal) => `Unknown signal: ${signal}`);
+  'Calling transform done when writableState.length != 0');
+E('ERR_UNKNOWN_SIGNAL', 'Unknown signal: %s');
 E('ERR_UNKNOWN_STDIN_TYPE', 'Unknown stdin file type');
 E('ERR_UNKNOWN_STREAM_TYPE', 'Unknown stream file type');
-E('ERR_SOCKET_ALREADY_BOUND', 'Socket is already bound');
-E('ERR_SOCKET_BAD_TYPE',
-  'Bad socket type specified. Valid types are: udp4, udp6');
-E('ERR_SOCKET_CANNOT_SEND', 'Unable to send data');
-E('ERR_SOCKET_BAD_PORT', 'Port should be > 0 and < 65536');
-E('ERR_SOCKET_DGRAM_NOT_RUNNING', 'Not running');
-E('ERR_V8BREAKITERATOR', 'full ICU data not installed. ' +
+E('ERR_V8BREAKITERATOR', 'Full ICU data not installed. ' +
   'See https://github.com/nodejs/node/wiki/Intl');
 // Add new errors from here...
 
@@ -200,6 +195,7 @@ function invalidArgType(name, expected, actual) {
 }
 
 function missingArgs(...args) {
+  const assert = lazyAssert();
   assert(args.length > 0, 'At least one arg needs to be specified');
   let msg = 'The ';
   const len = args.length;
diff --git a/lib/internal/process.js b/lib/internal/process.js
index 1636e73b7e009d..062b16e09039a6 100644
--- a/lib/internal/process.js
+++ b/lib/internal/process.js
@@ -86,7 +86,7 @@ function setup_hrtime() {
       }
       if (time.length !== 2) {
         throw new errors.TypeError('ERR_INVALID_ARRAY_LENGTH', 'time', 2,
-                                   time);
+                                   time.length);
       }
 
       const sec = (hrValues[0] * 0x100000000 + hrValues[1]) - time[0];
diff --git a/lib/internal/url.js b/lib/internal/url.js
index 7d7c79149a5c4f..64ebf383e6eb31 100644
--- a/lib/internal/url.js
+++ b/lib/internal/url.js
@@ -1352,8 +1352,7 @@ function getPathFromURLWin32(url) {
 
 function getPathFromURLPosix(url) {
   if (url.hostname !== '') {
-    return new errors.TypeError('ERR_INVALID_FILE_URL_HOST',
-                                `must be "localhost" or empty on ${platform}`);
+    return new errors.TypeError('ERR_INVALID_FILE_URL_HOST', platform);
   }
   var pathname = url.pathname;
   for (var n = 0; n < pathname.length; n++) {
diff --git a/test/parallel/test-child-process-fork-regr-gh-2847.js b/test/parallel/test-child-process-fork-regr-gh-2847.js
index 08f7977459bae4..9e4412d1f73738 100644
--- a/test/parallel/test-child-process-fork-regr-gh-2847.js
+++ b/test/parallel/test-child-process-fork-regr-gh-2847.js
@@ -60,11 +60,8 @@ const server = net.createServer(function(s) {
       send(function(err) {
         // Ignore errors when sending the second handle because the worker
         // may already have exited.
-        if (err) {
-          if ((err.message !== 'channel closed') &&
-             (err.code !== 'ECONNREFUSED')) {
-            throw err;
-          }
+        if (err && err.message !== 'Channel closed') {
+          throw err;
         }
       });
     });
diff --git a/test/parallel/test-child-process-send-after-close.js b/test/parallel/test-child-process-send-after-close.js
index 78cf3b6697ea1f..5039767aeb7660 100644
--- a/test/parallel/test-child-process-send-after-close.js
+++ b/test/parallel/test-child-process-send-after-close.js
@@ -10,9 +10,11 @@ child.on('close', common.mustCall((code, signal) => {
   assert.strictEqual(code, 0);
   assert.strictEqual(signal, null);
 
-  function testError(err) {
-    assert.strictEqual(err.message, 'channel closed');
-  }
+  const testError = common.expectsError({
+    type: Error,
+    message: 'Channel closed',
+    code: 'ERR_IPC_CHANNEL_CLOSED'
+  });
 
   child.on('error', common.mustCall(testError));
 
diff --git a/test/parallel/test-process-next-tick.js b/test/parallel/test-process-next-tick.js
index 9cbdfc6d3b6a2d..5c078870806cc5 100644
--- a/test/parallel/test-process-next-tick.js
+++ b/test/parallel/test-process-next-tick.js
@@ -43,6 +43,6 @@ process.on('exit', function() {
                 common.expectsError({
                   code: 'ERR_INVALID_CALLBACK',
                   type: TypeError,
-                  message: 'callback must be a function'
+                  message: 'Callback must be a function'
                 }));
 });
diff --git a/test/parallel/test-stream-transform-callback-twice.js b/test/parallel/test-stream-transform-callback-twice.js
index afb55faa1a27c1..83c799b92fba25 100644
--- a/test/parallel/test-stream-transform-callback-twice.js
+++ b/test/parallel/test-stream-transform-callback-twice.js
@@ -1,15 +1,14 @@
 'use strict';
 const common = require('../common');
-const assert = require('assert');
 const { Transform } = require('stream');
 const stream = new Transform({
   transform(chunk, enc, cb) { cb(); cb(); }
 });
 
-stream.on('error', common.mustCall((err) => {
-  assert.strictEqual(err.toString(),
-                     'Error [ERR_TRANSFORM_MULTIPLE_CALLBACK]: ' +
-                     'Callback called multiple times');
+stream.on('error', common.expectsError({
+  type: Error,
+  message: 'Callback called multiple times',
+  code: 'ERR_MULTIPLE_CALLBACK'
 }));
 
 stream.write('foo');