So finally got past the smog cert issue and a bad map sensor in the intercooler. However, during the smog test, I was informed I am getting low air pressure in the intake! What causes this? A bad MAF? a leak? I have replaced the EGR, and all rubber that connects hard pipes. The only piece not changed out during the rebuild is the plastic flex line from the airfilter box to the turbo intake.
View 2 RepliesWhen checking my check engine light , I got P0021 a cam timing error, but my mk4 Gti runs perfectly ??
View 4 RepliesDamn car is stuck in 3rd gear! Hooked up scanner and the screen just says error! I have to keep the scanner in the vehicle, hooked up, just to drive the car. That's just so it'll shift as its supposed to! Now it's not letting me pull the code out, in order for me to erase it! It just keeps saying "error".
View 1 RepliesI keep getting the error code P0420. Cat below threshold.
I have replace both the front and rear O2 sensors and we reset the check engine light. While driving through the cycles to reset the sensors for them to be ready for DEQ, the check engine light came on again.
I am about ready to buy the Cat Converter, but it is really expensive and if there are any other things that I can try before replacing the Cat I would like to try that first. Any other issues associated with that code, or should I just replace the Cat Converter as my next step.
I have a mk4 jetta 2.0l with about 130,000 miles. The issue with my car is that is has a rough idle and dies out completely when I put the car in neutral. I currently have codes 16839- EVAP system leak detected, 16487- Mass air flow sensor, 17978 - Engine start blocked by immobilizer, and 16795 - secondary air injection system incorrect flow detected. The secondary air pump was taken off the car before i bought it, so i do not think that code is responsible. Also all of my spark plugs and wires are new. I think the issue is either with my maf sensor or with a vacuum line. I have tried cleaner my maf and also unplugging it, and the car still has problem. Unfortunately i do not know where all of my vacuum line are. I have only checked the two the go into the sensor on towards the firewall. The one has vacuum, but the one coming for the egr valve did have any vaccum even when i tried with my other line on it. Im not sure if this is the issue, and if it would cause my car to die.
View 6 RepliesI was cruising down the highway and my check engine light came on. I was a few minutes from a auto store and they said my code was p1296. I found out it is either the thermostat or the coolant temperature sensor. I wanna know where it is located in the engine bay. I have a 02 VW Jetta 1.8T.
View 1 RepliesI have a 2005 Jetta 1.8t and the thing will not start! The battery is fine, and has been recharged 100%. The fuel pump is pumping. It cranks all day, but just won't start. The only error code i'm getting is a P0411 which I understand is a leak in the vacuum system somewhere.
View 5 Replies2002 Jetta 1.8L Turbo running fine. Then one day driving on the freeway at about 70, I try to pass someone and notice when I push the gas the engine lulls. I back off the gas and accelerate slower and I can get up to speed. Drive it all the way home and its fine a t low speeds. Turn the car off and try to restart it and it wont start. Turns over but wont start. No CEL or anything else, I check the codes and I have a P0171 (Lean fuel Bank 1). Where do I start? Also car is parked in an underground garage. No chance of a tow out of this place, it may soon be a Jetta tomb.
View 2 RepliesI just bought a 03 2.0 and ive been trying to fix her back up, she is almost there, just waiting on my first gear getter from diesel geeks and trying to figure out why these codes (p0420 and p0141) keep coming back on. Originally it was just a p0420 code so i took out the upstream sensor and cleaned it, then i took out the backstream and after examining it figured it should be replaced.
I went and bought a new one and replaced it, within the next 2 days the check engine light came back on throwing the original p0420 code along with p0141 this time. So i took out the new down stream 02 sensor and took it back to autozone and they swapped it out with a new one for me free of charge. So i put the newest 02 sensor in and then within 2 days, both codes p0420 & p0141 came back on. Two 02 sensor heating wires being bad i feel is a pretty slim chance. What is possibly the cause for these two codes repeatedly being thrown?
My car (jetta 2002 1.8t) have the error code p0501 even if the speedo is working. I replaced the speed sensor just to make sure.
If I erase the code, and drive no matter how far/fast I go, the check light doesn't turns on. But as soon as I turn of the car and drive again it does comes on.
Whenever P0411 triggers for me, it is very late into driving (i.e. like 30 minutes into the freeway type of situation) where the engine has already hit optimal temperature. I've gone 1000 miles after reset before it triggers. Sometimes 200 or so miles, but it never triggers quickly after a reset. I'm unsure if it matters, but the VR6 does have a cold air intake (and I do have the breather hose connected & maf correctly connected). I'm pointing it out because p0411 became an issue about 500 miles after I had installed the cold air intake.
View 6 RepliesMy 2003 Mk 4 Golf have had a lot of error codes and I have cleared most (O2 sensors, thermostat, and Mass Air Sensor) I now have an error P0113 which is the Intake Air temp Sensor.
So I need to clean the sensor first then maybe replace it, but I can't find the sensor on the intake manifold.
I have looked all through the U-Tube info, but nothing matches my 2003 Golf 2.0L ...
I have a 2004 MK4 Golf 2.0l that's been throwing a CPS error code. My brother was going to come down to visit for a weekend. He had done some diagnostic work and had me order a timing kit and a camshaft position sensor from ECS.
So, with my assembled parts, I brought the car in to a reputable shop. Anyway, the guy does the work and now the car is ready and saying that the CPS took nearly 4 hours more of work.
My 2003 Mk 4 Golf have had a lot of error codes and I have cleared most (O2 sensors, thermostat, and Mass Air Sensor) I now have an error P0113 which is the Intake Air temp Sensor.
So I need to clean the sensor first then maybe replace it, but I can't find the sensor on the intake manifold.
I have looked all through the U-Tube info, but nothing matches my 2003 Golf 2.0L ....
On my 2002 (AVH) 2.0L 4cyl Jetta I have a persistent P0420 error code: "Catalyst System Efficiency Below Threshold"
I changed the oil, cleaned the Mass Airflow Sensor, replaced the coolant, thermostat, and coolant temperature sensor. But it's still showing up.
OBDII says it could still be:
A damaged or failed oxygen sensor (HO2S)
Downstream oxygen sensor (HO2S) wiring damaged or connected improperly
Damaged or leaking exhaust manifold / catalytic converter / muffler / exhaust pipe
Retarded spark timing
The oxygen sensors in front and behind the converter are reporting too similar of readings
Leaking fuel injector or high fuel pressure
Cylinder misfire Oil contamination
I have 1 month left on my AAMCO rebuilt transmission. I took it in a few weeks ago when it went into "limp mode" (Stuck in 1st gear). Eventually, they got an error code of P0730, which I believe is electrical-related. All was pretty good but then today, driving @ high speed on the interstate, I could not get into 4th gear...
View 1 RepliesCar didn't start and so checked compression. 0 on all cyl. it took me a long time all winter but i replaced the gears and chains. compression check is now 175 on all cylinders. car won't start. scanned codes. P0107. cleared code and replaced map sensor. code returned? fuel pressure 45psi. tested for opens to ckp ok. ohm resistance .738 which is suppose to between .500 and .900 scanner doesn't show engine is cranking even when it is cranking fine. no theft light on.
The engine had started once but had run rough. The plugs where new but removed them and gap was not correct gaped to 42 thousandths. Assembled cleaning all ignition components. Still will not start. Checked power and grounds to pcm,good. Checked all fuses in engine compartment and inside car.
My check engine light is on. I got the code pulled at Advance Auto Parts. It is P0107 - MAP Sensor Circuit Low Input. I wanted to test the MAP sensor to see if it is bad. I couldn't find anything online that was Santa Fe or even Hyundai specific as far as testing procedures go. I know you can test the power wire, the ground wire, and the signal wire, from what I could tell from other places I've looked. I got 5ish volts from the power wire and 12ish volts on the ground wire, which is what I understand they should be. I don't have a vacuum pump at the moment, but testing the signal wire with no vacuum I got about 0.02 volts. From what I've read online, it should be around 5 volts, but I wasn't sure if all MAP sensors work the same way. Whether I'm doing this correctly and whether they think the sensor is bad?
View 5 RepliesSo of course it has to happen 3 weeks after my warranty expires. My CEL comes on and I have it read and the result is P0440. I find out that my wife has a habit of topping off the gas tank and so I am thinking that she has probably ruined the charcoal canister. It is something easy to replace?
I have an 06 limited edition... Yes, she will not be topping off any gas tank anymore.
I am getting a CEL and the error code is p2187 engine too lean at idle. I have been reading around to try and find the issue, some seem to say PCV could be the issue. I have also read a test would be try and remove the oil cap while car is idling. I did this test and the oil cap was difficult to remove and the idle got really rough once removed.
View 2 RepliesMy r is throwing a p0601 sum error. I clear, it comes right back. I know the previous owner has it chipped at a garage that wasn't linked to any brand. I was planning on putting an apr/giac tune over it but now I can't (no money). I know this might mean I need a new ecu. Right now I plan on going to vw on monday and having them reflash the ecu bringing it back to stock...if it returns then i guess i need a new ecu... This sound right?
View 5 Replies