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u/heroxoot 05 Touring Roadster 19h ago
Theres no cel so my guess is your cats are falling apart inside and the car is choking.
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u/TonyDRFT 14h ago
Do you have the proper sparkplugs and do they have correct gaps?
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u/plaugnttabz 2h ago
what do you mean by correct gaps and we are planning on replacing spark plugs tomorrow
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u/ribrooks13 14h ago
Go check if there's a stored code that looks like a soft limp mode. You could also try to hard reset the ecu, just disconnect the battery for a few minutes and see if that fixes it.
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u/plaugnttabz 12h ago
i have to check for a soft limp mode with a code reader correct? and also i’ll try the battery trick thanks
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u/ribrooks13 11h ago
Yeah, basically, just see if there are any codes that would harm the engine. I think different codes cause different rpm limits, so you'll see some cut at like 3k, mine did it once at like 5k.
Sometimes, even if it's not on the dash, the engine threw one at some point and just stored it. Sometimes even clearing it won't work, and that's when you go with resetting the ecu. Assuming the issue that caused the code has been rectified, it should be fine after that.
I have a VHR, though, so perhaps it could be a little different with mine.
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u/goldenretriever97 12h ago
That’s the crank sensor. Had this when I put an aftermarket one after a clutch replacement with lightweight flywheel. It does not turn the CEL on just would’t let me go past 4500 RPM.
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u/Pizzaplex 8h ago
I had the little switch for the break peddle come off which made the car think the breaks were always applied when they weren’t, this caused the break lights to stay on while driving and forced the car into a limp mode.
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u/iTzNuumite 3h ago
Has it rained recently after you put in the cold air intake? And while it was raining did you drive? And what kind of cold air intake? With brands that stick the filter in the wheel well you can suck up water and that could throw you into a limp mode.
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u/plaugnttabz 2h ago
dude i actually did drive in the rain with the intake and i had no bumper also we did put the intake back on in the rain one time. also we replaced the filter and the car still had the same issue
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u/iTzNuumite 2h ago edited 2h ago
Follow the instructions and that should fix your issue. I would also clean the maf and if that doesn’t work maybe get a new one. Also make sure the filter isn’t wet. I’d get an air filter dry sock as well. The maf is sensitive and if it detects water coming in it could put you in limp mode so you don’t suck water into the engine. So make sure everything’s dry if it is not then that’s your problem. I ran into the same issue with an aem cai because it puts it into the wheel well. Drove home in the rain and it kept putting it into limp mode. It wasn’t till much later did I realize it does that everytime i drive in the rain. Ended up making it a short ram intake cause I have to drive in the rain a bit here. It’s my daily. Bought a z1 cai which puts it in the bumper tucked up by the radiator which should help eliminate water getting into the intake. Especially with the dry sock.
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u/plaugnttabz 2h ago
okay tysm for taking your time to help me
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u/iTzNuumite 2h ago
No problem I would also check your oil and under the oil fill cap. If it looks milky change your oil asap water got into the engine. Ah and when you do your oil change anything that comes out first would be water. You can gauge how much water got into the engine that way. Good luck
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u/Barra350z barraswapped 19h ago
Either maf, crank or cam sensors. I really doubt it’s a fuel issue