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Crude is flowing from the injection pump, what is the remedy? The injection pump was converted to manual..

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When my car gets to 2800 to 3000 rpms it looses power drops the rpms the goes back up?


This is most likely a fuel system issue, Change the fuel filter, check the fuel pump pressure and volume. If that does not remedy the problem, it could be air flow problems through the catalytic converter or through the air filter.

Nov 01, 2014 | 1999 Suzuki Esteem

3 Answers

OBD test - Emissions test


hi ecudave, i will go for a tune-up / clean up; the injection system, intake and replacing the sparks, regular maintenance like this will surely clean you emmision. as per re[air cost or shop costs, that will still depend on which part to clean or to work on or even to replace like the spark, but it will not be more than $400.

hope that helps

Aug 05, 2008 | 1998 Audi A6

1 Answer

I have a 2000 Ford Mustang Convertible with error code P0411. I first noticed the check engine light come on and I noted some irregular idling, vibration felt in driver's seat, misfire after hard acc


A check valve is located in the air supply line to keep exhaust gasses from flowing into the pump

Read more at: https://www.obd-codes.com/p0411
Copyright OBD-Codes.com

Secondary Air Injection System Incorrect Flow Detected

Read more at: https://www.obd-codes.com/p0411
Copyright OBD-Codes.com

May 03, 2017 | Cars & Trucks

1 Answer

Vacuum pump located behind the driver side headlamp is cracked and the check engine light came on. It is no longer sealed and I'm afraid that debris will get sucked into the engine


Hello: That is NOT a Vacuum pump, it is a air pump. Its purpose is to inject air into the exhaust system in front of the converter to burn the extra gas injected into the engine on cold starts. The check engine light is on because the emissions system knows there is no air flow on cold starts. Debris will NOT get into the engine.....

Aug 09, 2011 | 2001 Cadillac DeVille

1 Answer

Checked Manual: 1996 chevrolet 3500 6.5 turbo. What is a(PMD)? manual doesnt list it.


Common Problems:
Pump Mounted Driver: Relates to thermal failures. The PMD is screwed to the DS-4 injection pump on the 1994-2001 GM 6.5 diesel utilizing fuel flow to dissipate heat. The injection pump is mounted in the intake valley (a high heat area). The PMD contains two power transistors that should be cooled by proper contact with the injection pump body. If the pump is not precisely machined to make complete contact with the transistors via the silicone thermal gasket and paste, the PMD is improperly installed without the gasket or paste, the PMD is installed off center with the pump body, or corrosion develops on the mounting surface the PMD will overheat. Several companies manufacture an extension harness and heat-sink kits. These allow an owner or their mechanic to relocate the PMD away from the injection pump to a lower heat environment and/or a place that can get more air flow.

Hope helps (remember to rate this answer)

Mar 19, 2011 | Chevrolet 3500 Cars & Trucks

2 Answers

I have bmw 2004 525i and code came out po411 what is that and how to fix it.


Secondary Air Injection Incorrect Upstream Flow Detected.
Check to see if there are any broken or cracked hoses going to the intake manifold.
A faulty air pump / smog pump would cause this too.

May 16, 2010 | BMW 525 Cars & Trucks

1 Answer

05 saturn ion dtc po420 and p0 411


go to this link for fault code P0420
http://www.obd-codes.com/p0420
all this read the catalytic converter is most likely worn out.
This Definition of P0411 is : Secondary Air Injection System Incorrect Flow Detected
What does this mean? u have a electric air pump that pumps fresh air into the exhaust system during cold start, this reduces exhaust emissions, that pump is defective, replace it.

Feb 01, 2010 | 2007 Saturn ION-2 Quad Coupe

2 Answers

2000 chev s 10, v6, 4wd, wont go above 40 mph. had secondary air injection and egr flow code. check air pump - ok flow good; check egr clean; acts like no air, choking.


Had the same problem with my 1999 Blazer (S10) a baffle broke loose in the catalytic converter causing exhaust blockage while accelerating. When idling or driving slowly the baffle did not shift enough to cause a problem. Replaced the catalytic converter from Pep Boys (direct fit) for about $150. Had to get the gaskets at NAPA though. Runs like a top now. Hope this helps. PS: sell the catalytic converter to a recycling place. Good for a few bucks due to the platinum in the converter.

Nov 22, 2009 | Chevrolet S 10 Cars & Trucks

1 Answer

Dissconnected fuel pump on peugot 206 gti reconnected now it wont start


Is there voltage at the terminals ?

Could you have crosswired the connections

Does the pump body vibrate when the ignition is switched on

Go to the engine end of the pipework and undo the fuel line where it comes onto the injection system get someone to hold a cloth over the end of the pipe and switch the ignition on, does fuel flow , if not you may have an airlock in the lines and will need to bleed it out by either undoing the connections one at a time starting at the one from the fuel tank to the pump

Crude way is to **** on the end of the pipe but expect a mouthful of petrol if it kicks in.

Nearly forgot is it a diesel, if so there is a prime button on the fuel lines in the engine bay which can be used to draw fuel through

Jun 17, 2009 | Peugeot 405 Cars & Trucks

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