Question about 1990 Honda Accord
There is no vacuum on the #16 vacuum hose going to the egr valve, the hose is not clogged
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Jul 24, 2016 | Nissan Frontier Cars & Trucks
Apr 16, 2013 | Cars & Trucks
Welcome to FIxYa.com
Description of codes are:
P01600 - Serial cable malfunction-- check connection,
Po115-Coolant sensor-indicates a open or short-circuit in the engine coolant temperature sensor circuit.
The P0401 code is Insufficient Flow Exhaust Gas Recirculation System.
The code is set when the engien computer detects less than the requested amount of EGR flow when the engine is hot and is under load.
What usually sets the code is an inoperative EGR valve, or a carbon clogged port under the EGR valve.
On your engine, the EGR valve is vacuum operated, and there is a little computer-controlled EGR solenodi valve in the vacuum hose that detemines how much vacuum the EGR valve gets. If this solenoid is bad, or there is a vacuum leak in one of the hoses, the EGR valve won't open when it should setting the code.
Since the dealer already cleaned the EGR valve tube, I would suspect your problem is likely due to a bad EGR solenoid valve or a leaky vacuum hose to the EGR valve.
Here is the EGR solenoid valve part number and list price:
P/N 3946038750 $40.59
I would clear the codes first and run engine for two min and re-check codes.
Write to me of the findings and we will go from there.
Regards, Lee Davidian
A Four Thumbs up ^^^^
is appreciated for answering your question.
Thank you, Lee
Oct 19, 2010 | 2001 Hyundai XG300
Exhaust gas recirculation (EGR) system - insufficient flow detected
Causes: Hose leak/blockage, basic setting not carried out (if applicable), wiring, EGR valve, EGR solenoid, ECM
Your EGR valve should be on top of the engine in the front between the intake manifold and the pulleys. It looks something like this:
First, make sure the vacuum hose is good and run it down to where it connects to the intake manifold to check for any leaks. If that's good and you want to get your hands dirty, take the valve off and see if it's clogged. clean it and see if you can actuate it with vacuum (put a vacuum hose on it, ****, and see if it will open. Also, look to see if there is gunk in the line and intake where it connects. Clean out anything you can with carb cleaner.
If you can get it unclogged and the valve is working, put the valve back on with a new gasket, else buy a new one ($40 at autozone :o( ). If you solve the issue, the engine light should clear after a couple hours of driving. OK?
Oct 16, 2010 | 2001 Ford Taurus
Jun 29, 2010 | 2000 Nissan Maxima
Apr 25, 2010 | 1999 Toyota Camry
Dec 07, 2009 | 2000 Mitsubishi Mirage
Sep 19, 2009 | 2000 Ford Expedition
Sep 04, 2009 | 1997 Chrysler Concorde
Dec 21, 2008 | 1996 Lexus LX 450
50 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: