Got one of those " projects " in my driveway 2000 ek civic b16 turbo ....same thing happens starts idle will surge and after it warms up it will stall at every stop idk wtf it is I have checked everything tuner can't see anything
Okay so....I had something very similar happen to me on my 1987 Gen1 Acura Integra. Basically when I first bought her, she wasn't able to rev, and would idle surge. If I gave it any kind of intense throttle it would just choke up and eventually stall/die. Nothing ever happened when she got warm, so sadly idk how to help there. Could be simple as a temp sensor idk. But yeah its similar but different but could be the same thing? Worth a shot. But basically what I did was took off the throttle body, checked the gasket there (it had none so previous owner messed that up) replaced it, it helped but was still there. What ended up fixing it for good was literally cleaning the vacuum lines that go directly into the throttle body out. Apparently there was just dust and grime in the lines that was blocking the proper air reading from being read further down the line by a sensor, and causing the weird idle/throttle issue. I know you said you checked em for leaks, but mine weren't leaking and it was still the issue. So yeah check the throttle body vacuum lines and clean them out with some compressed air or brake clean (off the car ofc) or something. As well as checking if there is a sensor at the end of any of those lines and cleaning that out too. I really hope that made sense and if you have any questions hopefully I can help.
My j31 accord started surging ad dieing because the emissions system plugged up the motor with carbon. I sold it to a friend, still has issues and it's been gone through. My assumption is the heads need walnut blasted and all emissions deleted... idk about the prelude tho
where is your MAF sensor? Im not a honda guy but i notice you were running it without a intake which is typically where a maf sensor is. To me that looks like it would explain the poor idle.
In this scenario you have to manually tune the car. Get in there and change the A\F ratios per rpm, you are going to need the appropriate software though, I don't know how much it would cost in your case.. I've fixed lots of motorcycles with the same problem. Someone put a bad generic tune and replaced this and that but I always fixed them with a custom manual tune. Don't rely on some one else's generic tune with a modified car, no two engines are the same, especially after 20 years.Taking on a non running diy turbo job is rolling the dice lol.
The dreaded prelude curse lol. I thought surging idle was a feature in those fifth gen preludes lol. Have you checked out the Honda prelude and the 5th gen Honda prelude fb groups? The boosted h/f group? There’s gotta be someone in one of those groups that has an idea out of the normal iacv fitv stuff. The HONDA PRELUDE fb group is pretty terribly toxic tho lol
I feel like this is a necessary video for anyone thinking about a project car because of TH-cam glamour
Keep the lude!!! we need more videos about it, youtube has almost no videos of our cars
Having the same issue with my 99 accord. Changed the thermostat because it was stuck open and now when it warms up it intermittently stalls.
Fuel filter? Fuel pump? Ecu tune? Clogged EGR valve?
Or couldn't you take it to a tuner, and wouldn't they be able to trouble shoot it?
I had a 01 prelude and I could never get the idle to be smooth. The rpms always surged and it always was ticking even after valve adjustment.
Had a similar issue on my integra it turned out to he the camshaft position sensor. Not sure if you have looked at that yet.
Idle control valve if those have that?
Got one of those " projects " in my driveway 2000 ek civic b16 turbo ....same thing happens starts idle will surge and after it warms up it will stall at every stop idk wtf it is I have checked everything tuner can't see anything
Okay so....I had something very similar happen to me on my 1987 Gen1 Acura Integra. Basically when I first bought her, she wasn't able to rev, and would idle surge. If I gave it any kind of intense throttle it would just choke up and eventually stall/die. Nothing ever happened when she got warm, so sadly idk how to help there. Could be simple as a temp sensor idk. But yeah its similar but different but could be the same thing? Worth a shot. But basically what I did was took off the throttle body, checked the gasket there (it had none so previous owner messed that up) replaced it, it helped but was still there. What ended up fixing it for good was literally cleaning the vacuum lines that go directly into the throttle body out. Apparently there was just dust and grime in the lines that was blocking the proper air reading from being read further down the line by a sensor, and causing the weird idle/throttle issue. I know you said you checked em for leaks, but mine weren't leaking and it was still the issue. So yeah check the throttle body vacuum lines and clean them out with some compressed air or brake clean (off the car ofc) or something. As well as checking if there is a sensor at the end of any of those lines and cleaning that out too.
I really hope that made sense and if you have any questions hopefully I can help.
My j31 accord started surging ad dieing because the emissions system plugged up the motor with carbon. I sold it to a friend, still has issues and it's been gone through. My assumption is the heads need walnut blasted and all emissions deleted... idk about the prelude tho
where is your MAF sensor? Im not a honda guy but i notice you were running it without a intake which is typically where a maf sensor is. To me that looks like it would explain the poor idle.
they tend to be right after the intake. And it's a Map sensor, not a MAF.
In this scenario you have to manually tune the car. Get in there and change the A\F ratios per rpm, you are going to need the appropriate software though, I don't know how much it would cost in your case.. I've fixed lots of motorcycles with the same problem. Someone put a bad generic tune and replaced this and that but I always fixed them with a custom manual tune. Don't rely on some one else's generic tune with a modified car, no two engines are the same, especially after 20 years.Taking on a non running diy turbo job is rolling the dice lol.
The dreaded prelude curse lol. I thought surging idle was a feature in those fifth gen preludes lol. Have you checked out the Honda prelude and the 5th gen Honda prelude fb groups? The boosted h/f group? There’s gotta be someone in one of those groups that has an idea out of the normal iacv fitv stuff. The HONDA PRELUDE fb group is pretty terribly toxic tho lol
How much for it!!
come to buckeye honda we will fix it
Sounds like your catlytic converter and or your o2 sensor are bad
Running lean bud.