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Hi. Here are the car details
-Model Year – 2001
-Make/Brand – Honda
-Complete Model (include EX, LX, GT, GLS, DX, X-Drive, 4matic, Clubman, Anniversary Edition, etc) Civic DX Coupe
-Engine/Transmission/4WD/2WD – 1.7, manual
-Country (market) the car was sold in – CanadaA few days ago my wife called me to say the car was running very rough and would not go over 20kms. I drove out to where she had it parked, started it and the first thing I thought of was some jerk at her work stuffed something in the tail pipe. It was acting like it had a restricted exhaust. CEL was on.
The car would go over 20 km/hr but would not rev over 2500 and seemed like a governor was on the engine. I tried to limp it home but it would stall going up hills and then within eye-shot of my house it stalled and would not restart.
I had it towed to my house and put the code reader on it. Got codes P1129 (MAP sensor) and P0420 Cat problem. I still couldn’t get it to start. I pulled the exhaust manifold off the engine thinking maybe flow was restricted but that didn’t help.
When I try start it the starter sounds weird not normal. It cranks but doesn’t sound like everything is working in the engine. I am wondering if the timing belt has broken teeth and has slipped.
I really want to diagnose this before I start tearing more of the engine apart.
Any ideas?
Thanks
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Replies
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I would check map sensor first as that is what your computer reads as an error code and with a bad map sensor the ecu doesn’t know what fuel/air mixture to use.
So here is where I am at.
Took off the timing belt cover and found teeth missing from the belt. I am going to do some looking and see if the belt slipped. This would make sense given the rough running of the car.
The 420 error has probably been around for a while. CEL has been on and off for a few months. (I just got a code reader this week)
The 1129 error has also probably been around for a while.
So I am going to change the timing belt and water pump. I had to order the harmonic balancer holding tool from Amazon. I’m in Canada and I can’t find anyone that sells these over the counter other than the dealer. I wish we had more options like you USA guys. We don’t have Pep Boys or Auto Zone. No one rents or lends hand tools here.
Once I get it started I will diagnose the cat and map sensor problem.
The timing belt on this model is a bitch to work on. What happened to Honda? They used to be so easy. If the timing belt is this difficult and the water pump is buried under it shouldn’t they have upgraded to a timing chain? Having to do this twice over the life of the vehicle seems stupid.
Once you have replaced your timing belt/tensioners and water pump I think your problem will be fixed.
With your harmonic balancer you can use a three fork puller which you can buy from any hardware store like theseSo I am going to change the timing belt and water pump. I had to order the harmonic balancer holding tool from Amazon. I’m in Canada and I can’t find anyone that sells these over the counter other than the dealer. I wish we had more options like you USA guys. We don’t have Pep Boys or Auto Zone. No one rents or lends hand tools here.
Canadian tire rents tools. You pay the full price but get it back when you return it. I think it’s 3 days but you can just go back and renew it. It saved my ass many times before I had as many tools as I have now
My Canadian Tire doesn’t rent tools. And I wouldn’t trust those morons to sell me the right tool in the first place. Idiots would f up an order for white paint. I bought lugs from them last month after swearing I would never go back and they screwed that up too. Morons.
I ordered the tool off Amazon. 1 day shipping. I will sell it when I am done with it.
I got the parts from an import shop earlier today.
Update.
Changed the water pump and timing belt and no start.
Pretty sure I bent valves when the belt went. (remember to change your timing belts kids 🙁 )
I am going to do a leak down test but I need to build a leak down tester first.
Once I know that the valves are bent I will take the head off and inspect.
If the pistons don’t look damaged I will be replacing the head as a complete assembly. I can get one pretty cheap.
Does this make sense or am I missing something?
Thanks
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