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I have a 1994 honda del sol with a b16a, I start it up it idles just fine has throttle response but won't go over 2k rpms as if it's the Rev limiter does the same thing in all 5 gears including reverse, if I shut the car off and start it with the gas pedal to the floor it will Rev all the way out but if I let it drop below 2k rpms I can't get it back over unless I do that again but if I do that and drive down the road the throttle response isn't great and it's ok accelerating but if your not constantly accelerating it has no throttle it's either accelerate over the speed your at or decelerate need help I've changed tps sensor and speed sensor.
It is a swap yes I just got it back and done but its the same exact setup as last engine nothing has changed beside transmission just took all internals out of old b16a and put in this new b16a block if I knew how to post a video I'd post a video of the check engine light I'm pretty sure all its showing is o2 sensor which I've never head
Test TPS with a voltmeter and make sure it is adjusted for proper idle voltage. Check cam and spark timing. Skipped timing belts are a common reason for a sudden severe loss of performance.
It's not that I have a loss in performance it starts fine it idles fine and has enough power and response all the way 2k rpms but if I shut the car up and start it with the throttle all the way down it will Rev out I just can't drop it below 2k rpms cause then it won't go above 2k as if it's the Rev limit
You're overthinking it. Go out to the car and check a few basic things. Do not expect proper performance when the CEL is on or if the engine is out of time.
Can you explain a little better I'm sorry I don't know much about them but I have to have this car driving right for work it's a b16a with a pr3-4 head and pgmfi intake man.
Jhmeh is the first 5 on the Vin on top of the dash I can't post pics right now because I don't have wifi but I start the car and starts up right away with no issue it idles fine has throttle response all the way up to 2k rpms I can drive it down the road in every gear and it does fine all the way to 2k then it's like a Rev limit. But if I shut it off put the pedal to the floor start it and keep it above 2k rpms it will run and do what ever speed I need and has decent throttle response but, say I'm accelerating to 60 mph it's fine but once I get to 60mph and try to hold it there it will act as if I'm giving it no throttle say if I wanna accelerate from 60 to 80 it does perectly fine till I get to that speed then it acts as if no throttle I'm either accelerating or I'm not when I do the cut off and start with pedal to the floor gonna post the pics you asked for once I get to work
Verify if your IAT and IACV connections are not mixed around. Your IAT sensor should be the one with the Grn/Wht and Red/Yel wires based on my personal memory and the diagram posted above by RonJ.
Stop trying to diagnose anything else if you have a CEL. Fix all CEL codes first. Doing that will most likely resolve your issue, along with other problems that your car may have. So first step, get rid of that IAT sensor code.
Verify if your IAT and IACV connections are not mixed around. Your IAT sensor should be the one with the Grn/Wht and Red/Yel wires based on my personal memory and the diagram posted above by RonJ.
Stop trying to diagnose anything else if you have a CEL. Fix all CEL codes first. Doing that will most likely resolve your issue, along with other problems that your car may have. So first step, get rid of that IAT sensor code.
I switched the iacv and the iat and it made it worse so I know there not switched up
I switched the iacv and the iat and it made it worse so I know there not switched up
The number of numbskulls blithely ignoring good advice on this forum is really annoying me tonight.
Check the damn wire colors. The purge valve and P/S pressure switch are also in play with the same 2-pin plugs. And it is even possible to swap the TPS and MAP with their 3 pin plugs. Check the damn wire colors. Honda designers didn't make extra effort and expense to specify "idiot proof" different connectors like they are on American cars because they didn't know the typical American very well. Check the wire colors.
B16a del sol wont go over 2k rpms
