johnny55
New CEG'er
Hey guys,
My Contour hasn't been running that great lately; it lacks power. It happens in two stages, and I'm pretty sure I've figured out why. Now to fix it.
When the car is cold the power is alright. The engine just doesnt have the usual power jump around 4000 RPM, it just stays flat. It's been like that for a few months. I was guessing the secondaries are not opening. Pulling DTCs shows the P1519 code for IMRC malfunction. So, I'm assuming I have to replace the module.
When the car warms up and I do a couple of WOT pulls, the engine falls flat on its face and stays like that until I shut it off and let it cool. Right when it looses power, timing drops from mid 30s to 14 degrees when I'm at WOT above 5000 RPM. After that the car stays between 11 and 14 degrees of advance at WOT throughout the entire RPM range. Pretty crappy haha. I cannot accelerate passed 80 mph, and 0-60 times are 14+ seconds. The STFTs go 20% richer after this happens too.
While trying to figure out why, I seem to have found a vacuum leak at the intake manifold. When I spray carb cleaner around where the upper and lower manifolds meet, the engine stutters and the RPMs drop.
I'm guessing I need a new intake manifold gasket. I've already replaced this right after I got the car 6 years ago (and I've read its a common problem), is there anything that can be done to prevent it from failing again?
Also, what about bad injector O-rings? They are in that area. Is that a common problem on these cars? Is there anything else I should be looking at?
I have a 98 SE, so I'm planning on getting an SVT upper and lower manifold, TB and TB bracket, and a replacement IMRC if I am going in there. I know the SE and SVT injectors have different flow rates, but I'm guessing they are the same dimensions and have the same o-rings? Is that correct, or would I have to source 98 SE specific o-rings?
Is there anything else I would need to swap over to the SVT parts?
I've also put up a WTB post in the classifieds for the parts mentioned above.
Thanks,
Johnathan
My Contour hasn't been running that great lately; it lacks power. It happens in two stages, and I'm pretty sure I've figured out why. Now to fix it.
When the car is cold the power is alright. The engine just doesnt have the usual power jump around 4000 RPM, it just stays flat. It's been like that for a few months. I was guessing the secondaries are not opening. Pulling DTCs shows the P1519 code for IMRC malfunction. So, I'm assuming I have to replace the module.
When the car warms up and I do a couple of WOT pulls, the engine falls flat on its face and stays like that until I shut it off and let it cool. Right when it looses power, timing drops from mid 30s to 14 degrees when I'm at WOT above 5000 RPM. After that the car stays between 11 and 14 degrees of advance at WOT throughout the entire RPM range. Pretty crappy haha. I cannot accelerate passed 80 mph, and 0-60 times are 14+ seconds. The STFTs go 20% richer after this happens too.
While trying to figure out why, I seem to have found a vacuum leak at the intake manifold. When I spray carb cleaner around where the upper and lower manifolds meet, the engine stutters and the RPMs drop.
I'm guessing I need a new intake manifold gasket. I've already replaced this right after I got the car 6 years ago (and I've read its a common problem), is there anything that can be done to prevent it from failing again?
Also, what about bad injector O-rings? They are in that area. Is that a common problem on these cars? Is there anything else I should be looking at?
I have a 98 SE, so I'm planning on getting an SVT upper and lower manifold, TB and TB bracket, and a replacement IMRC if I am going in there. I know the SE and SVT injectors have different flow rates, but I'm guessing they are the same dimensions and have the same o-rings? Is that correct, or would I have to source 98 SE specific o-rings?
Is there anything else I would need to swap over to the SVT parts?
I've also put up a WTB post in the classifieds for the parts mentioned above.
Thanks,
Johnathan